Side Yoke Differences
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 25
Likes: 0
From: Greene NY
Side Yoke Differences
Hey everyone, it's been a long time since I've posted anything but I've been so busy working on the vette, but still manage to read every day, all the great knowledge from the members of this forum.
Any way, here's my question. I resently rebuilt my differential, and I replaced the side yokes (for an auto trans.), and now the half shaft u joints are too big to fit the side yokes. I was wondering if the PO had put in all diff parts from a 4 speed rear end. Is there a difference in side yoke sizes between the two?
Do I need to get different side yokes, and if so, which ones? Or is there a different u joint out there that I could use? HELP!
Any way, here's my question. I resently rebuilt my differential, and I replaced the side yokes (for an auto trans.), and now the half shaft u joints are too big to fit the side yokes. I was wondering if the PO had put in all diff parts from a 4 speed rear end. Is there a difference in side yoke sizes between the two?
Do I need to get different side yokes, and if so, which ones? Or is there a different u joint out there that I could use? HELP!
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
Looks like their is a difference between manual and auto for 81. Seems strange, but napa says the auto takes the bigger u-joint cap at 1.188" and the manual takes the smaller at 1.106". You may have been sent the manual yokes by mistake. I hope this helps, or someone with better info will chime in.
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 25
Likes: 0
From: Greene NY
Looks like their is a difference between manual and auto for 81. Seems strange, but napa says the auto takes the bigger u-joint cap at 1.188" and the manual takes the smaller at 1.106". You may have been sent the manual yokes by mistake. I hope this helps, or someone with better info will chime in.
I'm all ears if some one else has any insight as to what I've got here.
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
The span, or measurement across the caps should be 3.62" for both. If it's too much of a pain to get the right yokes, you may be able to get a u-joint with different size caps to adapt. Local parts store should be able to find one by the size.
Another thing to consider if you use the new yokes is, the straps are probably different too.
Another thing to consider if you use the new yokes is, the straps are probably different too.
Last edited by '75; Sep 1, 2008 at 10:03 AM.
Thread Starter
Intermediate
Joined: Sep 2006
Posts: 25
Likes: 0
From: Greene NY
The span, or measurement across the caps should be 3.62" for both. If it's too much of a pain to get the right yokes, you may be able to get a u-joint with different size caps to adapt. Local parts store should be able to find one by the size.
Another thing to consider if you use the new yokes is, the straps are probably different too.
Another thing to consider if you use the new yokes is, the straps are probably different too.
I had to replace the side yokes because one of the old yokes had cracked, and both had worn beyond reusing.
Last edited by vroc81; Sep 1, 2008 at 10:19 AM. Reason: information omitted
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