Pinion Torque spec

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Nov 3, 2018 | 08:34 AM

#21

vettsplit 63

Le Mans Master

Joined: Sep 2009

Posts: 9,151

Likes: 481

From: "You may all go to Hell- and I will go to Texas- Davy Crockett

St. Jude Donor '12

Quote:

Originally Posted by MikeM

A local Chevy mechanic used to pull the crash sleeve out and lightly hammer the crush in the sleeve to flatten it a tiny bit. Then, re-tighten the nut to get the riight drag.

👍 That's pretty innovative, especially when we might not have had another sleeve. Thanks, Mike

Nov 5, 2018 | 10:23 PM

#22

64corvet

5th Gear

Joined: Aug 2017

Posts: 5

Likes: 1

From: Tucson

I tried to Loctite method and the noise is gone. But there is a small vibration. I will order a new crush sleeve, seal, and pinion nuts and try again thanks for the great confirmation.

Nov 5, 2018 | 10:46 PM

#23

Vette5311

Race Director

Joined: Mar 2018

Posts: 10,805

Likes: 2,230

From: Golden Colorado

Quote:

Originally Posted by 64corvet

I tried to Loctite method and the noise is gone. But there is a small vibration. I will order a new crush sleeve, seal, and pinion nuts and try again thanks for the great confirmation.

Small vibration may be something else. Did you mark the driveshaft before removal? If not try rotating it 180 degrees.

Nov 6, 2018 | 07:56 AM

#24

GTR1999

Tech Contributor

Joined: Aug 1999

Posts: 15,193

Likes: 4,016

From: Connecticut, USA

Quote:

Originally Posted by 64corvet

I tried to Loctite method and the noise is gone. But there is a small vibration. I will order a new crush sleeve, seal, and pinion nuts and try again thanks for the great confirmation.

You're going to get into a deep hole trying to do a sleeve in the car. First the old most likely will not slide out past the outer race, the new same as well. You will have to pull the diff.

Now if you have an original 64 diff, the crush sleeve is not the same as the 65-79, that one may slide past the outer race. However original 63-4 differentials were NOT good. They are weak, the posi's broke, the pinion gear snapped in 1/2, and the posi parts are obsolete. Many have been changed out by now but I still see them come in.

If you plan on a sleeve I strongly advise you to remove the diff for bench repair. You can tell by looking at the housing if it's a 64 or later by looking at the front bracket hole in the diff. If it's tapped it's a 63-4, if it's a through hole, like the one behind it, then it's a 65-79. 64 covers have a steel vent and machine thread plug vs the plastic vent and 3/4 npt plug the 65-79's use.

Nov 23, 2018 | 10:46 PM

#25

64corvet

5th Gear

Joined: Aug 2017

Posts: 5

Likes: 1

From: Tucson

Codes stamped on rear end

Trying to figure out what is in my vet. Here is what is stamped “AWW 291 E2” and casting number is “2898143” or “2899148” the 8s 9s and 3s look a lot alike. The rear end was changed in my car before I got it. I think the AW = HD 308, W = Warren Mich, I don’t know the rest, can anybody help me with this?