Go Back   The Ford Barn > General Discussion > Early V8 (1932-53)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 02-28-2016, 01:15 AM   #1
choptop30
Junior Member
 
Join Date: Nov 2010
Posts: 16
Default 32 ford rearend change?

Building a 32,
In the middle of cutting down a 40 rear-end to put under the stock 32 frame.

I was wondering if the stock late 32 rear-end (scalloped tube) with spring and other misc. related parts that I have would be a better choice if I just swap out the mechanical brakes for later hyd. brakes and use it instead.

Will be running a warmed over flathead and stock three speed.

Any guidance would be greatly appreciated.

Don
choptop30 is offline   Reply With Quote
Old 02-28-2016, 01:55 AM   #2
aussiesteve
Senior Member
 
Join Date: May 2010
Posts: 247
Default Re: 32 ford rearend change?

Late 32 is a better choice.
I have a 34 rear with 3-54 gears and lincoln brakes in my32 3 window and it works fine.
Also,The 40 rearend is wider as well
aussiesteve is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 02-28-2016, 08:52 AM   #3
vulture
Senior Member
 
vulture's Avatar
 
Join Date: May 2012
Location: In the shop
Posts: 359
Default Re: 32 ford rearend change?

With a flathead you'll be fine running a 32 rearend early or late. The only difference is between the 32 and 40 rearend is in the banjo area and mainly the pinion area. The weak link on most banjo rearends is the axle shaft keyway and improper torque settings. A hole shot or dumping the clutch is hard on the axle shafts. Most failures are shafts not ring and pinion or carrier . As far as width the 40 rearend is a inch wider on each size and will fit nicely in a 32 with or without fenders.
__________________
Wanted Roadster Pick up thank you COLOR]
vulture is offline   Reply With Quote
Old 02-28-2016, 10:23 AM   #4
32phil
Senior Member
 
Join Date: May 2010
Location: Montgomery, NY & Port St. Lucie Florida
Posts: 975
Default Re: 32 ford rearend change?

Using the late 32 rear IS a bolt in. It should handle a warmed flathead as long as you don't have too much "fun" with it. Juice brakes are a bolt in too. I have a late 32 rear behind a warmed up 265 SBC and a 39 trans 2000+ miles with no problems.
__________________
Early Ford Lock & Key Service
https://www.fordbarn.com/forum/showthread.php?t=46583
32phil is offline   Reply With Quote
Old 02-28-2016, 01:06 PM   #5
Bored&Stroked
Senior Member
 
Bored&Stroked's Avatar
 
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,723
Default Re: 32 ford rearend change?

If you run the original axles, just do one really smart thing - buy a set of 'hub safety brackets' - they usually bolt into the same bolts as the wheel cylinders (hydraulic brakes).
That way, if you get a little too frisky one day and do happen to break an axle, the wheel doesn't fall off . . . as lots of bad things can happen at that point . . . the least of which is totaling the car.
Bored&Stroked is offline   Reply With Quote
Old 02-28-2016, 01:55 PM   #6
Gabalus
Senior Member
 
Join Date: Jul 2012
Location: France
Posts: 113
Default Re: 32 ford rearend change?

Sponsored Links (Register now to hide all advertisements)
Does anyone break an axle ?
Used ? Rusty ? Too much torque ?
Gabalus is offline   Reply With Quote
Old 02-28-2016, 03:07 PM   #7
JSeery
Member Emeritus
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
Default Re: 32 ford rearend change?

Broken axles happen, they are not uncommon. And, it not always because of driving aggressively.

Last edited by JSeery; 02-28-2016 at 03:13 PM.
JSeery is offline   Reply With Quote
Old 02-28-2016, 04:02 PM   #8
Charlie Stephens
Senior Member
 
Join Date: May 2010
Location: Southern California
Posts: 7,305
Default Re: 32 ford rearend change?

Quote:
Originally Posted by Gabalus View Post
Does anyone break an axle ?
Used ? Rusty ? Too much torque ?
I broke an axle on my '31 RDPU. Stock Model B engine, about 5000 miles of normal driving after rebuild. The same axle that is used in an early '32 rear end. The axle was used but passed a magna flux inspection. Definitely not rusty. Maybe too little torque if anything (probably the most common cause of failure). My guess is that there was a small crack that magna flux missed and it gradually worked its way through causing the failure. If I had hydraulic brakes I would have had safety hubs of clips. I just got lucky. There is another recent thread on this same topic: https://www.fordbarn.com/forum/showth...light=stephens

Charlie Stephens
Charlie Stephens is offline   Reply With Quote
Old 02-28-2016, 04:38 PM   #9
Gabalus
Senior Member
 
Join Date: Jul 2012
Location: France
Posts: 113
Default Re: 32 ford rearend change?

Quote:
Originally Posted by Charlie Stephens View Post
I broke an axle on my '31 RDPU. Stock Model B engine, about 5000 miles of normal driving after rebuild. The same axle that is used in an early '32 rear end. The axle was used but passed a magna flux inspection. Definitely not rusty. Maybe too little torque if anything (probably the most common cause of failure). My guess is that there was a small crack that magna flux missed and it gradually worked its way through causing the failure. If I had hydraulic brakes I would have had safety hubs of clips. I just got lucky. There is another recent thread on this same topic: https://www.fordbarn.com/forum/showth...light=stephens

Charlie Stephens
Thank you Charlie Stephens. But now, I'm scared.
Gabalus is offline   Reply With Quote
Old 02-28-2016, 04:51 PM   #10
bluardun
Senior Member
 
bluardun's Avatar
 
Join Date: May 2010
Location: Tucson, Az.
Posts: 329
Default Re: 32 ford rearend change?

This has been mentioned before..but..how many pounds torque should the hub be tighten too?
bluardun is offline   Reply With Quote
Old 02-28-2016, 04:52 PM   #11
Pete
BANNED
 
Join Date: May 2010
Location: Wa.
Posts: 5,423
Default Re: 32 ford rearend change?

Stock early Ford drive line components absolutely will fail eventually with even a mildly modified (125 hp) flathead engine.
If you plan on retaining the cross spring through it all, consider
changing the center section of the cross member to a later one that will take a straight spring. This will allow you a wide choice of springs like an A or T if you go to a quick change or a later rear end.
For now and the cheapest way for you is use the 32 rear end, BUT, be thinking ahead because the 32 is going to be a whole bunch of headaches. They do not have a straddle mounted pinion for one big thing.
You will want to have either the full welded ring type saftey hubs or at least the clips.
Consider an 8 inch Ford rear out of a Maverick. They are the right width to fit the car and with the availabe weld on kits, you can use any cross spring. They will handle any flathead engine you will put in the car and almost any gear ratio is available. A 9 inch is overkill for a light car with any engine under 400 hp. They are also 90 lb heavier.
With any "fun type" flathead engine you will also have transmission problems eventually. This consists of broken parts in the case and sometmes on the street.
Consider one of many late model options for a transmission as your funds allow. Adapters are availabe for just about any combination you can dream up.
Pete is offline   Reply With Quote
Old 02-28-2016, 05:31 PM   #12
hotcoupe
Senior Member
 
hotcoupe's Avatar
 
Join Date: May 2010
Location: imperial,mo
Posts: 745
Default Re: 32 ford rearend change?

"For now and the cheapest way for you is use the 32 rear end, BUT, be thinking ahead because the 32 is going to be a whole bunch of headaches. They do not have a straddle mounted pinion."

the late `32 rear axle does indeed have a straddle mounted pinion.

if you`re building a period car, i think the late `32 rear axle would be a good choice [it`s what i`m using]. but you have to remember that rear axle is not going to stand up to a lot of abuse. if you want to spin the tires, use a Maverick axle.
tom

Last edited by hotcoupe; 02-28-2016 at 05:38 PM.
hotcoupe is offline   Reply With Quote
Old 02-28-2016, 06:00 PM   #13
Pete
BANNED
 
Join Date: May 2010
Location: Wa.
Posts: 5,423
Default Re: 32 ford rearend change?

Made note of the late 32 straddle mount.
Thanks.
Pete is offline   Reply With Quote
Old 02-28-2016, 08:35 PM   #14
choptop30
Junior Member
 
Join Date: Nov 2010
Posts: 16
Default Re: 32 ford rearend change?

I really appreciate all the feedback to my question.

Thanks Don
choptop30 is offline   Reply With Quote
Old 02-28-2016, 08:47 PM   #15
Bored&Stroked
Senior Member
 
Bored&Stroked's Avatar
 
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,723
Default Re: 32 ford rearend change?

The late 32 axle is easily identified in that it has the 'scalloped' torque tube flange - in addition to a pinion support in the center section - and I believe the radius rod bracket mount angles are the same as 33/34 (not sure here?).

The late 32 rear is like the 33/34 rears - except the torque tube and driveshaft are shorter. This is a much better/stronger rear end than the early 32 rear . . . which is pretty much a 'Model A' style rear.
Bored&Stroked is offline   Reply With Quote
Old 02-29-2016, 08:54 AM   #16
vulture
Senior Member
 
vulture's Avatar
 
Join Date: May 2012
Location: In the shop
Posts: 359
Default Re: 32 ford rearend change?

Quote:
Originally Posted by Gabalus View Post
Does anyone break an axle ?
Used ? Rusty ? Too much torque ?
I have broken 3 in the last couple years 2 of them were my stupidity one slipping the clutch and the other doing a donut the other just took off from the light . I do recommend the drake drum retaining safty bracket. I would get them from Vern Tardell the original maker and great guy.
__________________
Wanted Roadster Pick up thank you COLOR]
vulture is offline   Reply With Quote
Old 02-29-2016, 10:54 AM   #17
Gabalus
Senior Member
 
Join Date: Jul 2012
Location: France
Posts: 113
Default Re: 32 ford rearend change?

Thank you for your answer.
I'm a little bit scared, I've just put axle shims on my car... (A-4235-SH)
Gabalus is offline   Reply With Quote
Old 02-29-2016, 01:40 PM   #18
vulture
Senior Member
 
vulture's Avatar
 
Join Date: May 2012
Location: In the shop
Posts: 359
Default Re: 32 ford rearend change?

Have to ask why the shims? I know model a guys use them for the juice brakes rather then cut the drum or lip. They are fine to use and really only issue is the keyway and make sure it's not sloppy. You most likely shear a key rather then snap a axle end .
__________________
Wanted Roadster Pick up thank you COLOR]
vulture is offline   Reply With Quote
Old 02-29-2016, 05:05 PM   #19
Gabalus
Senior Member
 
Join Date: Jul 2012
Location: France
Posts: 113
Default Re: 32 ford rearend change?

Rear drums touch backing plates. I put conical shims on axle shafts.
Before running, I'll remove parts to be sure !
Is-it dangerous to use those axle shaft ?
Gabalus is offline   Reply With Quote
Old 02-29-2016, 06:22 PM   #20
JSeery
Member Emeritus
 
JSeery's Avatar
 
Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
Default Re: 32 ford rearend change?

There is always the possibility of an axle breaking, I would always use a retainer. The damage to a car can be significant when an axle breaks.
JSeery is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 06:07 AM.