Diff end play on '64
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
Cruising
Joined: Jul 2012
Posts: 12
Likes: 0
Back in the day, I used to do some machining to the grooves in the stub shafts that protrude from the differential and add additional retaining rings.
First, I would calculate the end play that I wanted. Then I would increase the width of the retaining ring groove so it would take an additional retaining ring. The new, wider groove would also be offset the proper amount to result in the desired end play when reassembled with the two retaining rings.
JDB
First, I would calculate the end play that I wanted. Then I would increase the width of the retaining ring groove so it would take an additional retaining ring. The new, wider groove would also be offset the proper amount to result in the desired end play when reassembled with the two retaining rings.
JDB
Thread Starter
Racer
Joined: Jan 2008
Posts: 379
Likes: 10
From: N'Awlins
Yes, axle shaft end play is what I was trying to describe. Should I be concerned with that much end play? How much is too much?
On another note, I have a '76 center section but I notice that the pinion shaft u-joint is larger than the '64 u-joint. Can I replace the u-joint holder for the '76 with the '64. (please make allowances for my lack of technical terminology) Any insight and/or pitfalls greatly appreciated.
Thanks
CJ
On another note, I have a '76 center section but I notice that the pinion shaft u-joint is larger than the '64 u-joint. Can I replace the u-joint holder for the '76 with the '64. (please make allowances for my lack of technical terminology) Any insight and/or pitfalls greatly appreciated.
Thanks
CJ
Race Director
Joined: Jul 2001
Posts: 15,892
Likes: 42
There is no OEM specified limit on side yolk end play. Without getting into another huge argument- there's a large percentage of C2/C3 cars knowingly and unknowingly running around with far more clearance than you've got and don't have any problems.
Melting Slicks
Joined: Oct 2002
Posts: 2,317
Likes: 111
From: St Louis MO
Yes, axle shaft end play is what I was trying to describe. Should I be concerned with that much end play? How much is too much?
On another note, I have a '76 center section but I notice that the pinion shaft u-joint is larger than the '64 u-joint. Can I replace the u-joint holder for the '76 with the '64. (please make allowances for my lack of technical terminology) Any insight and/or pitfalls greatly appreciated.
Thanks
CJ
On another note, I have a '76 center section but I notice that the pinion shaft u-joint is larger than the '64 u-joint. Can I replace the u-joint holder for the '76 with the '64. (please make allowances for my lack of technical terminology) Any insight and/or pitfalls greatly appreciated.
Thanks
CJ
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Verdad Gallardo
Team Owner
Joined: Jul 2006
Posts: 22,192
Likes: 4,180
From: Kannapolis NC
I drove one for a long time with a LOT more than that and didn't change it until the nut on the u-joint starting bumping the axle housing occasionally in a turn under acceleration. I wouldn't do it now, but nothing bad happened then.
Thread Starter
Racer
Joined: Jan 2008
Posts: 379
Likes: 10
From: N'Awlins
Thanks for the advice, guys. So, it looks like I'm good to go with whichever diff I can use and be OK. I'm going to pull the back covers of both for inspection and use the one I thinks is best and what gear ratio. 