i could be buying my friends all steal 40' willys gasser he lost interest in and it is a true old school set up with quarter elliptic springs going to a big quickchange rear. my question is how many of you out there use one and how strong are they? the motor that comes with it is a 392 hemi 671 gmc four port injection
If its a v-8 size one, i wouldnt run it behind that mill, not to say they didnt back in the old days, but if it is a champ size, then it is a variation of same rear they run it modern sprint cars and you should be OK if you dont beat it too bad. That said, with a mill like that you might have problems... Your best bet is figure out just how much motor you have and how well you expect to hook up then talk to quickchange companies and rebuilders and see if they recomend it, there are some treatments that can be done to the cases to strengthen them, and as with any gear set, having everything shimmed proper is a biggie
Two sizes are out there. The "V8": Which is based on early Ford parts. (like mid 30's on up to '48) And the "champ": Which I really don't know much about. Believe it was based on big truck parts (also early Ford) and evolved from there.
Since my first gentle reply was deleted-the one mentioning the wonderfull search function I spent a couple minutes looking for you. http://www.jalopyjournal.com/forum/showthread.php?t=409187&highlight=quickchange Shaggys tech http://www.jalopyjournal.com/forum/showthread.php?t=377014&highlight=quickchange Floater and brake info http://www.jalopyjournal.com/forum/showthread.php?t=350696&highlight=quickchange General tech and blown up pinion info http://www.jalopyjournal.com/forum/showthread.php?t=329422&highlight=quickchange The search I used was pretty general, just typed quickchange in the search box. Hope this helps. Trent
You don't see many quick change rearends in drag cars....I wonder why? might be because the shock of launching the car is too hard on them? I'd be looking for a dana 60 for that car.
Pontiac rears from '59-'64 work, as well as the Olds rears of the same years as previously stated...they're 31 spline axles, removable center section and parts are still widely available for them if you know where to look...
Also, I usually recommend from '59-'64 on Pontiac/Olds rearends because the earlier ones use a smaller spline count, from '59-'64 I believe they're all 31 spline for both Pontiac and Olds, and those are WAY stronger...
A Quick Change with straight cut gears makes street use almost painful they are so loud inside the vehicle. The real reason there are not many on drag cars is because you don't need the drag created by the extra gears and because you just do not need the almost infinitely adjustable gear ratio like you need in circle track (especially dirt) racing. But the champ car quick change is an extremely strong rear end. Scott...
I Heard the shock load on straight cut gears will destroy the rear end. I haven't personally experienced this and I'm not worried about shock load on a light car with an automatic. I've had Quickchanges in most of my cars and presently in my Roadster with about 475 HP and 625 Ft Lbs of torque... My best time was 11.70 at 123 mph with an automatic on street tires!
The biggest problem, or weakest part of the quick chages are the lead pinion shaft. I have run champs, halibrand, jones, winters and even a Benson speed equipment quickie and they all tend to twist the lead pinion shaft with todays tires. They are strong if you have some tire slippage or using an automatic trans(no trans brake tho) it would probably survive. If you look into the guys who opted to run quickies back in the day, they usually spun the tires on launch or had slippage in the clutches allowing them to hold up. When they needed to get quicker, they would drop the quickie and put in BOP rears or would opt for a heavier truck rear. They actually can be loud, but a little time with a drill press or mill and you could make them almost silent. I got away running a jones quick change unit on the front of a 9" ford in my prostock circle burner with rules that did not allow any quick change rears nor gearboxes....silence can be golden!!! POST PICS OF THIS WILLYS...NOT MANY REAL DEAL STEEL WILLYS OUT THERE CHANGING HANDS...WE WANT PICS!!!
maybe pics later of the willys if there is a later looks like i'll be gone soon since i dont fit in with the cool people on the internet lol
Agree with Kevin Lee. The V8 is much too weak and the "Champ" is good for 450 - 550 horsepower accoring to Halibrand. I have a champ in my roadster, but agree that the Willys would benefit an Olds. Also with a quick change, you would probably have to notch out the gas tank to allow the rear housing to travel . If you have a V8 quick change (smaller unit), I am looking for one. Thanks Brian
I don't quite understand what you mean by that...I think your Willys fits in just fine. More than a few gassers ran quickies...Charlie Hill, Dave Hales and the Mallicoat Borthers. I run a quickie in my car every single day. Yea, it is only an 11 second street car, but I'm confidant the rear can take much more. The Thunderbeast guys have a Frankland in thier roadster with big slicks and it is in the nines... Good luck and make sure to post pics. -Abone.
Jerry and Gary Mallicoat did run a quick change in thier willys when they were running the smaller 283 powerplants in thier willys. When they stepped up to the 327 with 6-71 blower, 505c roller cam 17 lbs of boost they were making 580 horsepower, coupled this with a Spar Hydro stick and the quickchange had to be pulled out. They put in an OLDS rear with 1 ton chevy truck floating hubs and brake asssemblies. This was more than strong enough to hold up to not only this set up, but the twin turbo setup they went to in 1965. By the way, the twin turbo motor when they finally got it tuned right made 780 hp!!! The quick changes are strong, and they will hold up to a lot of hp, they just do not take the instant load when the clutch is dropped. There is a couple guys running roadsters in my area that are running quickies in them, and they are holding up quite well with automatics in front of them.
And nobody has mentioned that a real steel Willys is worth enough to build 3 hotrods? Please post pictures when you get them. Meanwhile, I will listen to flamedabone.........
We run them (Winters) in asphalt supermodifieds with up to 900hp and 34" of tire on the ground (19"rr and 15" lr), BUT we are not shocking the geartrain with a drag style launch. Under heavy shock, the lower shaft will wind up, cock the lower spur gear in the housing...and the thing saws itself in half. I'd agree with the posters who recommend changing the quickie out. Just not worth worrying about it, IMO.
Why don't you call Winters? Tell them what you plan to run, engine and transmission, etc., and ask them how much horsepower and shock the rear end can take.
I didn't see any mention of what transmission was being used either. I'm no expert but back in the day it probably would have been a B&M Hydromatic and an Olds rear or something to that tune. Farther back, on the lakes guys started out using the Quicky with an old Ford box, but they weren't launching like they did later at the drags. Just a comment FWIW
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