This question isn't about a "traditional build", but the issue is relevant, I think, to our HAMB projects as well. I recently acquired an OT daily driver that has a rear end "whine" on deceleration. For example, cruising at highway speeds, 70 mph or so, lifting off the throttle, I hear a high pitched gear noise that fades away as the speed drops to around 50 mph. Driving around at lower speeds, no apparent noise. The rear end is a Mopar corporate 8.25", 3.21 axle ratio, and has just under 40,000 miles. So far as I can determine, it has never been worked on....has original factory setup. because of the speed range factor, I have wondered if it is just a "harmonic" issue, as opposed to gear lash or a bearing problem, as I would think those conditions remain constant, regardless of speed. I know some Ford axles and driveshafts have harmonic dampeners. What do you fellows think? Ray
Noise on deceleration is usually pinion bearing related. Maybe it's not bad enough yet to do it all the time, just at the higher speeds ?
Here is the traditional answer " They all do that". At least untill they get worse and break. Unless you are worried about it for a warranty issue, just keep an ear on it. I doubt it will break anytime soon. (some never do). It will get worse in time then you will find it. That kind of thing seldom breaks that it leaves you stuck along side the road unless you ignore it.
If you can, use a turkey baster and a hose to draw out a small amount of fluid and place it on white paper. If there are any metallic particles then a pinion bearing race or roller is flaking. You are actually hearing a ring and pinion whine due to a misalignment caused by a worn or deteriorating bearing.
A bad pinion bearing will growl under hard acceleration do to the side load on the pinion gear. Sounds to me like you have a ring and pinion that either were not set up right or didn't mate well. If this is the case , they will probably last untill the vehicle goes to the junk yard. Ricks idea about looking for metal is good too. Also a pinion is preloaded, if the pinion can be moved fore and aft , even a .001 of an inch it would indicate bad bearings.
My dad had a seal go bad and cooked a rear in a Chevy. Put new seal and fluid in and drove that howling rear for years after that.
Thank you all for the replies. It is a warranty item, I think (power train), so I suppose I should take it to a dealer and get their take on this. Being an integral carrier, it is not so easy to work on in the car, but that is likely what will be done, if anything. At least get a notation in the vehicle history to document a complaint. I think I will inspect the fluid for metallic contamination, as a starting point. Again, thanks for the comments......a lot of knowledge here on the HAMB. Ray
If it's in a Grand Cherokee or similar, yeah, the answer is "They all do that". When they switched from the Dana to the 8.25" in the original Cherokee they suddenly had gear noise. I was at the dealer then and there is nothing you can do about it shy of putting the Dana in one. My wife has one with 260k on it and it makes the same noise as a brand new one did.
I worked at a Ford dealership for 25 years and you have a noise on the coast side of the ring and pinion. A bad bearing will make a constant noise. Taking it apart will show no problem at all. It's a gear mesh problem. The ring and pinion will need replaced and set up. It was probably quiet when new, but started making the noise. Will last a long time, just noisy. Set-up with the correct tools the new one should be quiet. Engineers at the factory will find out why this one was noisy.
I did the 'shift into neutral' procedure....no change......it's not tires. I am familiar with tire noises...often sound like bad wheel bearings, among other things...this is definitely ring/pinion related. I've owned and driven several regular Cherokees over the years, with Dana 35 and Chrysler 8.25" axles, and never had any with noise issues. I do know the aluminum case Dana 44 in '9os era Grand Cherokees were notoriously noisy. Ray
I noticed some of the newer Mopars the trans in OD makes more noise than other makes when coasting has to do with the OD unit planetarys . Fords were real bad till they started to use Gm to help design there transmissions . if its under warrenty let them take a look at it . Oh and I do remember one way Gm takes care of the noise is they put a sound dampening pad above the trans on the floor outside and inside the vehicles , I know Ford didn't do this ( only pad on floor ) on my lil Brothers truck and its noisy like a old dump truck in OD ,His wifes Ram IS worse
Ray, wife's 07 jeep makes the same noise, dealer said it was normal. i did change the fluid and it is quieter....i think.
Turn the radio up and drive it till the wheels fall off. My T and 1969 FLH sound like parts are falling off while driving or riding.
Not to jack this thread but was wondering if anybody can tell me about my Buick? It has a whine that only occurs during acceleration. It's a '49 Roadmaster with a straight 8 and a torque tube rear. No whine at steady speed, whine gets real bad around 50 mph, no whine at coast. Have pull the whole torque tube rear to work on it and new ring and pinion are no longer available. Think it could be a bearing?
Visit Dumb.com for funny videos, crazy photos, jokes, video games and more! The Fart Name List The Alarm Fart - This is a good fart for the beginner. It is easy to identify. It starts with a loud unnaturally high note, wavers like a siren, and ends with a quick downward note that stops before you expect it to. It sounds like something is wrong. If it happens to you, you will know right off why it is called the Alarm Fart. You will be alarmed. The alarm fart however is rare. The Amplified Fart - This is any fart that gets its power more from being amplified than from the fart itself. A metal porch swing will amplify a fart every time. So will a plywood table,and empty fifty gallon drum, a tin roof, or some empty cardboard boxes if they are strong through being amplified in this way can be called an Amplified Fart. These are common farts under the right conditions. For example, if you're sitting on an empty 55-gallon steel drum. The Anticipated Fart - This one warns that it is back there waiting for some time before it arrives. A person who is uneasy for a time in a crowd and who later farts at a time when they think no one will notice has farted an Anticipated Fart. The Back Seat Fart - This is a fart that occurs only in automobiles. It is identified chiefly by odor. The Back Seat Fart can usually be concealed by traffic noise as it is an eased-out fart and not very loud. But its foul odor will give it away, due to the way air moves around in a car. It is often followed by someone saying, "Who farted in the back seat?" The Barn Owl Fart - A familiarity with owl calls is helpful in identifying this fart. Almost any morning if you get up just before daybreak you can hear one of these birds talking to himself. It's a sort of a crazy laugh, particularly the way it ends. If you hear a fart that has about eight notes in it, ending on a couple of down notes, and it sounds maniacal, you have heard the rare Barn Owl Fart. The Bathtub Fart - People who would never in their life know one fart from another, who would like to act like fart don't exist, will have to admit that a Bathtub Fart is something special. It is the only fart you can see! What you see is the bubbles. The Bathtub Fart can be either single or multiple noted and fair or foul as to odor. It makes no difference. The farter's location is what does it. Maybe there is a kind of muffled pong and one big bubble. Or there may be a ping ping ping and a bunch of bubbles. The sound I should point out depends somewhat on the depth of the water, and even more on the tub. If it is one of those big old heavy tubs with the funny legs you can get terrific sound effects. While one of the new thin ones half buried in the floor can be disappointing. The Biggest Fart in the World Fart - Like the great bald eagle, this fart is pretty well described just by its name. This can either be a group one or a group two fart and can occur just about anywhere. I heard it one time, a group two identification, in a crowded high school auditorium one night, right in that silence that happens when a room full of people has stopped singing the Star Spangled Banner and sat down. It came from the back. There was not a soul in that room that missed it. A fart like that can be impressive. The most diagnostic characteristic of the Biggest Fart In The World is it size.Fart freaks who go around showing off, farting like popcorn machines, and making faces before they fart or asking you to pull their finger and then they fart, never have what it takes for this one, which is rare even among your most serious farter's. The Bitburr: Sounds like just that--you're walking and the initial explosion "BIT!--" during one step is followed by a more gentle release of the rest of the volume during the next step: "brrrrrr..." The Bullet Fart - Its single and most pronounced diagnostic characteristic is its sound. It sounds like a rifle shot. The farter can be said to have snapped it off. It can startle spectators and farter alike. Fairly common following the eating of the more common fart foods, such as beans. The Burning Brakes Fart - A silent fart identified by odor alone. Usually and adult fart, occurring while the adult is driving a car or has a front seat passenger who farts. The Burning Brakes Fart actually does smell a little like burning brakes, and seems to hang around longer than most farts Which gives whoever farted a chance to make a big show of checking to see if the emergency brake has been left on. When he finds it hasn't you know who farted. A common automobile fart. The Car Door Fart - Either a group one or a group two fart. Very tricky. It is meant to be a concealed fart. A matter of close timing is involved, the farter trying to fart at the exact moment he slams the car door shut. It is usually a good loud fart. It is one of the funnier farts when it doesn't work, which is almost every time. It is a desperation fart and not too common. The Celestial Fart - Not to be confused with the Did An Angel Speak Fart, which is simply any loud fart in church. The Celestial Fart is soft and delicate, surprising in a boy or an adult. It is probably the most shy of all farts and might be compared with the wood thrush, a very shy bird. It does not have the sly or cunning sound of the Whisper Fart. It is just a very small clear fart with no odor at all. Very rare. The Chicken Soup Fart: One day I had chicken soup for lunch at work and then stopped off at the gym after work. When it came on, I eased it out, covered by the gym's muzak. It smelled exactly like chicken soup. A few feet away some woman sniffed and said; "Is somebody cooking?" I had to turn to the wall to hide my laughter. The Chinese Firecracker Fart - This is an exceptional multiple noted fart identified by the number, and variety of its noises, mostly pops and bangs. Often when you think it is all over, it still has a few pops and bangs to go. In friendly company this one can get applause. Uncommon. The Command Fart - This fart differs from the Anticipated Fart in that it can be held for long periods of time waiting for the right moment. Unlike the Anticipated Fart, it is intended to be noticed. Harold Tabor recently held a Command Fart for the whole period in history class and let it go right at the end when the teacher asked if there were any questions. The Common Fart - This fart needs little description. It is to the world of farts what the house sparrow is to the world of birds. I can see no point in describing this far any further. The Crowd Fart - The Crowd Fart is distinguished by its very potent odor, strong enough to make quite a few people look around. The trick here is not to identify the fart but the farter. This is almost impossible unless the farter panics, and starts a fit of coughing or starts staring at the ceiling or the sky as though something up there fascinates him. In which case he is the one. Very common. The Cushioned Fart - A concealed fart, sometimes successful. The farter is usually on the fat side, sometimes a girl. They will squirm and push their butt way down into the cushions of a sofa or over-stuffed chair and ease-out a fart very carefully without moving then or for some time after. Some odor may escape, but usually not much. Common with some people. The Did An Angel Speak Fart - This is any loud fart in church. This fart was first called to my attention by my father. He probably read about it somewhere. For fart watchers who go to church, this is a good one to watch for as this is the only place it can be found. The Dud Fart - The Dud Fart is not really a fart at all. It's a fart that fails. For this reason it is strictly a group one identification fart, because there is no real way you can identify a fart that somebody else expected to fart but didn't. It is the most private of all farts. In most cases the farter usually feels a little disappointed. The Echo Fart - This is a fart that can be wrongly identified. It is not some great loud fart in an empty gym or on the rim of the Grand Canyon. The true Echo Fart is a fart that makes its own echo. It is a two-toned fart, the first tone loud, then a pause, and then the second tone. Like an echo. The G and L Fart - This is one of the most ordinary and pedestrian of farts, known to everyone. Certainly it is the least gross. If you have not already guessed, G and L stands for Gambled and Lost. One of the most embarrassing of all farts, even when you are alone. The Ghost Fart - A doubtful fart in most cases, as it is supposed to be identified by odor alone and to occur, for instance, in an empty house. You enter and smell a fart, yet no one is there. People will insist that only a fart could have that odor, but some believe it is just something that happens to smell like a fart. The Hic-Hachoo-Fart Fart - This is strictly an old lady's fart. What happens is that the person manages to hiccough, sneeze, and fart all at the same time. After an old lady farts a Hic-Hachoo-Fart Fart she will usually pat her chest and say, "My, oh my," or "Well, well." There is no reason she should not be proud, as this is probably as neat an old person's fart as there is. The Jerk Fart - The Jerk Fart is a fart by a jerk who smirks, smiles, grins, and points to himself in case you missed it. It is usually a single-noted, off-key, fading away, sort of whistle fart, altogether pitiful, but the jerk will act as if he has just farted the Biggest Fart in the World Fart. The John Fart - The John Fart is simply any ordinary fart farted on the john. It is naturally a group one identification, with the sound, whatever it was, somewhat muffled. If it is all the person's trip to the john amounted to he will be disappointed for sure. Common as pigeons. The Lead Fart - The heaviest of all farts. It sounds like a dropped ripe watermelon. Or a falling body in some cases. It is the only fart that goes thud. Except for the odor, which is also very heavy, it could be missed altogether as a fart. What was that, you might think? And never guess. The Malted Milk Ball Fart - Odor alone is diagnostic and positively identifies this fart. It smells exactly like malted milk balls. No other food works this way. It is rare. The Oh My God Fart - This is the most awful and dreadful stinking of all farts - a fart that smells like a month-old rotten egg - as the Oh My God Fart. If you should ever encounter it, however, you may first want to say, oh sh*t, which would be understandable. The Omen Fart - This is the adult version of the Poo-Poo Fart. About the only difference is that the farter will not say anything. He will just look kind of funny and head for the john. This one is easy to spot if you pay attention. The Organic Fart - Sometimes called the Health Food Nut Fart. The person who farts an Organic Fart may be talking about the healthy food he eats even when he farts. If he is heavily into health foods he may even ask if you noticed how good and pure and healthy his fart smells. It may smell to you like any other fart, but there is no harm in agreeing with him. He is doing what he thinks is best. The Quiver Fart - A group one identification fart only. When you fart, it quivers. If it tickles, then it is the Tickle Fart. If you have to scratch it, then it is the Scratchass Fart. The Rambling Phaduka Fart - You must not be fooled by its pretty-sounding name, as this is one of the most frightening of all farts. It is frightening to farter and spectator alike. It has a sound of pain to it. What is most diagnostic about it, however, is its length. It is the longest-lasting fart there is. It will sometimes leave the farter unable to speak. As though he has had the wind knocked out of him. A strong, loud, wavering fart, it goes on for at least fifteen seconds. The Relief Fart - Sound or odor don't matter on this one. What matters is the tremendous sense of relief that you have finally farted. Some people will even say, "Wow, what a relief." Very common. The Reluctant Fart - This is probably one of the oldest farts known to man. The Reluctant Fart is a fart that seems to have a mind of its own. It gives the impression that it likes staying where it is. It will come when it is ready, not before. This can take half-a-day in some instances. The Rusty Gate Fart - The sound of this fart seems almost impossible for a fart. Is is the most dry and squeaky sound a fart can make. The Rusty Gate Fart sounds as if it would have worked a lot easier if it had been oiled. It sounds like a fart that hurts. The S.B.D. Fart - S.B.D. stands for Silent But Deadly. This is no doubt one of the most common farts that exists. No problem of identification with this one. The Sandpaper Fart - This one scratches. Otherwise it may not amount to much. You should remember that if you reach back and scratch, it automatically becomes a Scratchass Fart. Common. The Shower Fart: These are a lot worse than bathtub farts, due to conditions of humidity and heat. George Carlin once said that you can tolerate the smell of your own farts, but shower farts are the exception to that rule. The Skillsaw Fart - A truly awesome fart. It vibrates the farter. Really shakes him up. People back away. It sounds like an electric skillsaw ripping through a piece of half-inch plywood. Very impressive. Not too common. The Snart: This is a fart that you succeed in suppressing so as not to not to offend, but then a sneeze jars it loose. The Sonic Boom Fart - The people who believe in this fart claim it is even bigger than the Biggest Fart In The World Fart. The Sonic Boom Fart is supposed to shake the house and rattle the windows. This is ridiculous. No fart in the world shakes houses and rattles windows. A fart that could do that would put the farter into orbit or blow his crazy head off. The Splatter Fart - Unfortunately the Splatter Fart exists. It is the wettest of all farts. It probably should not be called a fart at all. The Stutter Fart - If you think stuttering is funny, this is a very funny fart. It is a fart that can't seem to get going. The sound is best described as pt,pt,pt-pt,pt-pt-pt,pop,pop-pop-pop-POW! It is usually a forced-out fart that gets caught crossways, as they say, and only gets farted after considerable effort. The Taco Bell Fart - The Taco Bell Fart is far richer and full-bodied than your ordinary Junk Fart and takes longer to build up. Sometimes hours or even a day. But it will get there. And it will hang around after, too. Even on a windy day. The Teflon Fart - Slips out without a sound and no strain at all. A very good fart in situations where you would rather not fart at all. You can be talking to someone and not miss saying a word. If the wind is right he will never know. The Thank God I'm Alone Fart - Everyone knows this rotten fart. You look around after you have farted and say, "Thank God I'm alone." Then you get out of there fast! The Tickle Fart - A group one only and one of the easiest to identify. Usually a slow soft sort of fart. If you like being tickled this is the fart for you! Other Names For Farts nouns verbs aerosolized stool after dinner mint air air attack air biscuit air monkey air poop anal acoustics Anal announcement anal escape of wind anal emissions anal oxide anal retreat anus evacuation Arkansas barking spiders ars musica arse blast ass dropping backblast backdoor trumpet back draft back end blow out bae barking rats barking spiders bean bombers bean fumes beaver leaver beer fart belching clown big spit-up bilabial fricative blampf blare-ass Blat blow-by blow fish blue angel blue bomber blue darts blurp bologna sandwich essence boomper letters bork bottom burp botty burp botty cough bram brewer's fart brown-body radiation brown haze brown mist brown speckled mallard brownster brun canard bubblers buck snort or bucksnort bull snort bum and flutter bunsen burners burners burp that went astray burp that comes out the wrong end butt burps butt cheek squeak butt moose butt mutt Butt trumpet can o' chedder carpet creeper case of swamp ass cheeser cheese toasty chert chold chou pi chunder churchhouse creepers cornhole tremor crepidus crunchy frog cushion creepers davebrok deer snort dej desert varnish doofu doozer doozy double flutterblast drifters drig drive by Dutch oven eggy whiffo essence of Emeril excreted gas explosion between the cheeks extreme fumagatory essence fang pae fang pi fannitosis fanny beep fanny bubble fanny halitosis fart fartrogen dioxide fat lady delight fecal clouds fickle fuzz fing fingi fire in the hole fizz fizz-fuzz fizzy fuzz flabbergaster flame throwers flatulence flatulencia flatus flooper fluff flurpies fly breaking the sound barrier foo-foo frump Furz fuss the fuzz the fuzz=fizz gas gasser gastronomical reprocussion General Colon Bowel barking commands gluteal tuba gooz gross wind grosse humours guano-talk gou pi grunghee gurglers hanger hissers hole in the wall gang honksa hot wind Hun Futza hurricane hydrogen bombs ignimbrite Jersey torch jetwash kabooms kanala the leather cheerio bark lingers lort love puff low flying geese low flying jets massive vapor of butt gas message from the interior methane misdirected burp Missouri mud ducks moon beam morning thunder mouse mousie squeak mudslapper mush musical butt the nether belch nuée ardent one-cheek sneaks One-gun salute paad pants geese passed flatus passed gas peaches pedo peido peo pet petard phewie pip pluts poelse poodles poof poofume poo gas pooh pooh noise poop fumes poop without the mess poopy tunes poot pooty pants popcorn fart pop tarts power poof preets prison break proot-proots prootsie prut pudd puffer puh puk pulpmiller pum purple clouds putt-putts queve rames rare arse rattler rectal turbulence report ringo ringtailed roarer rip ass ripship the ripshit ripskin ripsnorter roevgas Room clearer rup rap the scented scream scheet seam squirrels shit fumes shit propellant shit vapor shit without the mess silent but deadly silent but violent silent depth charge silent spadily sitter air Singe skag skid sliders smelly jelly smell-o-rama smelts smoofer snak S.O.D. some asshole behind you talking shit sound spadily sphincter whistle sphincturbulence spitters squeakers squib stainer stale wind stench of death stink stinker surprise svaerd talking pants tear arse tear ass terminal flatulence terminal velocity flatulence three tone fart thunder below thunder in the buns tonage toop tooters toot-toots triple flutter blaster triple thunder flutter trouser cough trouser trumpet trump turtle tushie belches underpants lion Under-thunder veirnt ventifact vind voice of the toothless one wet fart wet one whallop whootzie wind wind breakage windy pops wizard zephyr Anal Salute backfire bake breeze biscuits bake brownies bark bend a valve Beep your horn Blast the chair blow dirt blow dust blow a fart blow a gasket blow kisses blow mud blow smoke Blow the big brown horn blow the sparkplugs blurt boff Bottom blast Bottom burp boom-boom break the seam break wind buang angin bust ass Buttock bassoon Butt burp Butt tuba butt yodeling chemold clear one's throat cleft a boofer colon bowlin' cook eggs couper le fromage crack ass crepitate crop dusting cut a gasser cut a melon cut chedder cut muffins cut one cut the cheese cut the provolone Cut a stinker Cut the wind deal one degas dot'dot draw mud from the bottom of the pond drop ass Drop a bomb drop a cookie drop a fart drop a ringo drop a rose drop one drop one's guts effluviate emit a fart erupt one fardullah fart fart like a popcorn machine fessa flatulate Flatulence float an air biscuit frump Funky rollers furzen fuss Gaseous intestinal by-products get expelled from stool grunt guff heiny burp he o koita here comes Freddie Honk HUMrrhoids Jag fis kentut kill the canary launch a wifter lay a fart lay a jellybean Let a Beefer Let each little bean be heard let a windy let fly a fart let Freddie out of jail let one make a stink make cheese make methane make some underleg noise Mating call of the barking spider Mexican jet propulsion ot'ot pass gas Pass wind peidar peter piffle pollute the atmosphere poopski poot pop corn pop off pritz puf Puff, the Magic Dragon! pukat queimar a bota Rebuild the ozone layer one poof at a time Rectal honk Rectal shout refine shit particles release intestinal gases Release a tree monkey from captivity ringo rip one rip the canvas Ripple Fart roar from the rear shit the bed shoot bunnies Shoot the cannon sink my battleship sneeze in one's pants spider's barking spill one's guts split the seam start a Harley start the engine step on a duck step on a frog step on a fart snake stink out loud stomp on the barking spider strike mud strip a gear supply it taint ripper toot Toot your own horn To speak German Trouser cough Trouser trumpet vent winden laten FartNames.com is part of the Stupidness.com network. © 2015 All Rights Reserved. Contact Us here.
from automotive rear end noises , to interfamily dating , to human rearend noises , only on the HAmb !
My 96 Dakota has had a ring gear whine in it's 8.25 from off the lot new till now with over 160,000 miles. Our family's been a spicer dealer for over 40 years selling and installing many ring & pinions and a Rep from Spicer once told me in mid 90's that "mopar" has them "spicer" skip a tempering process to save Mopar money "yearly bottom line profits" on many of their dana ring & pinion sets. I have to say I believe it. Out of a typical years time we sell around 30 - 40 Dana sets and about 80 percent of them are for Mopar based trucks. So i've always thought my dakota's 8.25 also suffers from this lack of tempering, i'm thinking it's gears were cheapo factory ones too even though non dana. Dana or not it is highly annoying. I knew about the gear whine since I test drove it almost 20 years ago now, reguardless it's been a good pickup. The repacement Dana sets we sell are quiet & I think another set of factory gears will be noisy too and would just live with it if I could, unless they can put in a good aftermarket set. Had an old 340 duster 8.25 that was quiet as a mouse. With all the technology we have nowadays I still often believe that the older "metal temperment and quality was AOK. I hope you get it worked out with the dealer, I hope they've got a good old about to retire differential guy in their shop! Flux
Flux, I am concerned about exactly what you said in your last sentence. I think rear end repairs are among the less frequent operations performed in auto shops. t the same time, they are demanding of care and precision during setup if they are to run quiet and for a long time. People with those attributes are not plentiful, I fear. Ray
Exactly, as hard as it would be to choose what to do, I'd rather take it to a local "expert in the area" of gear patterns. Where I am located, out of many mechanics in the area there are 2 on verge of retirement that i've watched & let them set up my final patterns because I know you only get one chance on a new set. This reminds me of my dad's new 76 Impala 400 small block with less than 500 miles new car and the bottom end of the engine sounding wacky, came to choice to take apart in our machine shop. It was our first taste of select fit half shells in the mains. Many careful measurments and feathered shim stock later and it was good for many more years. It's a sick feeling, to think of going in to your new diff., Thats why I chose to live with our dakota shop truck's little ring gear hum. I'd definately document it though. A friends a GM service manager and says that will get results if the issue is pushed. Hope it goes well sir!
The Jalopy Journal
