View Single Post
Old 06-27-2015, 12:18 PM   #4
davepl
Registered User
 
davepl's Avatar
 
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
Re: Rear end troubles

Quote:
Originally Posted by Tony View Post
I do some differential work and that 12 bolt looks a bit beat up. but nothing that new gears and bearings won't fix..
Here's what little I know, I'd love if you'd fill it in - transmissions and 12 bolts are the two things I try not to take apart.

- Check backlash with micrometer
- Change shims left and right to correct (watch your fingers dropping it in!)
- Fill with fluid

But if you've done it with the micrometer, do you still need to do the contact pattern paint thing? It sounds like plastigauging after you've mic'd a journal.

[Later Edit: As so kindly pointed out below, while a depth micrometer can be used, a dial indicator is much easier though less accurate. The normal way is indeed a dial indicator on a magnetic base but I'd then use the contact pattern paint to be sure.]
__________________
1970 GMC Sierra Grande Custom Camper - Built, not Bought
1969 Pontiac 2+2 427/390 4-speed Coupe
1969 Pontiac 2+2 427/390 4-speed Convertible

Last edited by davepl; 06-28-2015 at 03:21 PM.
davepl is offline