Customs Chipped a rear axle in my 41 ford

Took of the rear wheels today to address a brake squeak and found this.the axle had chipped next to the keyway.looks like a keyway has broke in the past as the axle is beat up pretty bad .well I put it all back together and went home,gonna need another axle I suppose....

 

Sometimes those types of repair last forever.

 

That axle has had it. There's no good fix for that one. It's totally ruined to death. New ones are quite, read very, expensive. Leave me a private message with the gear tooth count and total length from the back side of the gear to the tip of the shaft. I may have something for you.

 

OMG! I am truly puckered up at that one!

 

That one's shot, replace it.

 

What did the taper in the hub look like?

 

Hub looks good,actually could tell it was replaced as they didn't do a good job with the studs

 

That could be the result of a loose axle nut.

 

>>> well I put it all back together and went home,gonna need another axle I suppose...>>>

>>> Sometimes those types of repair last forever.>>>

How does the axle's bearing surface look?

 

Bearing surface looks great.i know that carnage happened before I owned it.ive had it 8 months and did the brakes then and the axle looked the same just without the broken piece

 

https://www.fordbarn.com/forum/showthread.php?t=212170

Originally Posted by deuce_roadster >>>it is high, very high like around 200 ft lbs. I never try to take it up that high in 1 pull. I tighten it up pretty tight, (leave cotter pin out) drive around the block, tighten again. I do that a couple of times to work the hub onto the taper. Then when it is really tight, i put a torque wrench on it and take it to 195 ft lbs and then the next cotter hole and install cotter. It is the friction of the taper of the axle and the hub that keeps the hub from spinning on the axle not the key. If the hub is loose enough that the axle key is driving the car, you will eventually brake the end off the axel as a crack will develop at the inner end of the axle key recess.>>>

 

With all the varying torque values everyone spits out n the interwebs I personally settled on 150#.I've got a rear out of a 48 I believe out back.does anyone know what axle years interchange?

 

Were it me and I already had it apart, seen it as is less the chipped out piece and put it back together and it lasted fine I'd do a repeat job. However, this time I'd use Locktight #NBC 39150 to hold the chipped out piece in place being very careful not to displace it while putting the Drum back on. Then do a proper job tightening the Axle Nut as described above by Jack E/NJ and keep driving it until it was a good time to lay it up and swap it out. Now just take a moment and think about it. The drum hub hole is a matching tapper so there is actually no place that the chip can go unless the Hub is not properly seated, it can't get away and you have been driving it not knowing it was broken out. There's your proof it will continue to work. In fact, LOCKTIGHT makes a product for imperfect shaft to bearing sealant that holds like a weld repair. It's design for Press fit bearings that are loose to the fit. That stuff works killer. I've looked for the tube I bought for a part number for ya but it seems to be MIA.

 

https://www.jalopyjournal.com/forum/threads/ford-axles.55439/

BL >>>Rear Axle>>>All 35-48 axle housings will interchange, using the appropriate axles (Bruce Lancaster)>>>>

On the rears, axle interchange MAY require also swapping the spider gears. There are two different tooth counts there. Pinions have two different spline counts, but adapter couplers are available.

The parts book will detail the years of each sort. >>>

 

Thanks for the info

 

Thanks Mark

 

Before I got it it had been sitting in riverside for 10 years then before in Mexico for a number of years

 

Bratton"s , www.brattons'.com, makes a rear axle shim for Model A's PN 6120, it might help your situation until you can locate another axle.

 

There is NOTHING that will "fix" that axle well enough to hold if you drive "spiritedly". Just idle around like an old fart, sure, maybe so...but where's the fun in that? You need a nice smooth,even taper well matched to the hub and torqued to approx 200 ft/lbs to be correct and have strength. No amount of lapping or liquid fix is going to make that axle dependable for when you really need it.

 

You are a good man @Glenn Thoreson .

The only legit repair for that axle would involve welding it up, and turning it down to original spec. There was a time that I could have done that, and I am sure if I could find access to the equipment I still could but it would take more thought for me than it once did. I would look for another axle before i paid a machine shop to do it.

@wheeltramp brian Take Glenn up on his offer. If he does not have what you need drop me a note. I have given all my banjo stuff away but I remember where it went.

 

How tight was your axle nut when you removed it. If it was loose that explains why you had the problem. You should add safety hubs or brake drum retainer clips when you put it back together especially if you take any "short cuts".

Charlie Stephens

 

My personal point of view is yes, it's in bad shape. It was that way 8 months ago when it was taken apart and put back together. I doubt he drove it any different than his normal way in that time and it stayed together. I'd bet it will keep going until a new axle and time to change it comes around. Why miss out on the rest of the good weather driving just because?

 

My kinfolks would weld that up, crank up the lathe then cut the key way

 

Well, I've got kin that would just weld the end of the axle to the hub! But yeah, put it together and drive 'til it won't go if you need to...

 

KrazyGlue!!! 8^)

 

So why did Henry put a key in there; every other taper drive I've come across is strictly taper with no keys.

 

Well I drove it round trip to the ventura nationals today in the rain most of the way there.bout 120 miles,I'll look in to fixing it Monday

 

From the looks of that axle mess, you will need another hub, too.