Side Yokes Loose
Thread Starter
Pro
Joined: Nov 2008
Posts: 680
Likes: 5
From: Denham Springs LA
Side Yokes Loose
Both side yokes on the rear end of 76 vette have about 1/8" play. Took the yokes out and the ends aren't mushroomed or smooth/ground. Both circlips were in place and in good shape. Makes me believe the clutch pack is worn and needs to be shimmed and maybe even replaced.
Rear end was working fine. Not slipping or chattering. I pulled rear end to clean it up while changing trailing arm bushings. The rear end does make a clunking noise when shifting between forward and reverse. The bushings at the front of the rear end were shot.
Question: will shimming the clutch pack fix the yoke gaps on both sides. Seems like shimming the clutch pack would only correct or help the gap for the yoke on the passenger side.
Roger
Rear end was working fine. Not slipping or chattering. I pulled rear end to clean it up while changing trailing arm bushings. The rear end does make a clunking noise when shifting between forward and reverse. The bushings at the front of the rear end were shot.
Question: will shimming the clutch pack fix the yoke gaps on both sides. Seems like shimming the clutch pack would only correct or help the gap for the yoke on the passenger side.
Roger
Race Director
Joined: Sep 1999
Posts: 11,361
Likes: 383
From: Plano TX
Shimming will not fix the play if it is caused by wear at the end of the yoke. It will fix it if it is due to worn clutches. You need to shim the clutches the right way:
1) Remove the carrier from the case.
2) Install one clutch pack and spider gear.
3) Install cross shaft with one spider on it.
4) Jam a thick screwdriver between crossdhaft and clutch spider gear.
5) Check play on cross shaft spider (wiggle).
Add clutch shims until the spider just barely has play. You're shooting for 0.001".
If the yoke still has excessive play after this it is a worn yoke. A new yoke was about 0.183" from the snap ring groove to the end. You can measure yours and see how much is gone.
1) Remove the carrier from the case.
2) Install one clutch pack and spider gear.
3) Install cross shaft with one spider on it.
4) Jam a thick screwdriver between crossdhaft and clutch spider gear.
5) Check play on cross shaft spider (wiggle).
Add clutch shims until the spider just barely has play. You're shooting for 0.001".
If the yoke still has excessive play after this it is a worn yoke. A new yoke was about 0.183" from the snap ring groove to the end. You can measure yours and see how much is gone.
Thread Starter
Pro
Joined: Nov 2008
Posts: 680
Likes: 5
From: Denham Springs LA
Both yokes measure 0.175 from end to circ clip groove.
Guess I'll order a new clutch pack and shims.
Considering rebuilding differential, new bearings and 3.36 gear ratio for the big block I am building. Any thoughts.
Thanks
Roger
Guess I'll order a new clutch pack and shims.
Considering rebuilding differential, new bearings and 3.36 gear ratio for the big block I am building. Any thoughts.
Thanks
Roger
