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Old Oct 11, 2008 | 08:31 AM
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Hi Gary
Just replaced the bearings and seals in my diff.
Pinon drag set @ 16 lb/in
Pinion shim .027 (factory)
Back lash @ .009.
The first pic is the drive side





The second pic is of the coast side.




The pattern doesn't look right, What changes do you think I need to make.

Thanks in advance

Clyde
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Old Oct 11, 2008 | 12:24 PM
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Are these new or used gears?
The lash is open if new gears and the drive pattern is deep. I can't see enough of the coast to say they look high. If used gears go for the best coast pattern you can get.
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Old Oct 11, 2008 | 12:27 PM
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Gary,
Should he make a slip fit pinion bearing and play with the pinion shim, maybe increase shim thickness?


Scott
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Old Oct 11, 2008 | 12:47 PM
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Scott,
I do use a slip fit to get me close then install the new one and sometimes still have to fine tune it. I also find the setup brg's only last me a couple of builds before they start to get sloppy.
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Old Oct 11, 2008 | 04:11 PM
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Originally Posted by GTR1999
Are these new or used gears?
The lash is open if new gears and the drive pattern is deep. I can't see enough of the coast to say they look high. If used gears go for the best coast pattern you can get.
Gary
They are the old gears. I'll try to get a better pic of the coast side for ya, see what ya think. Thanks for the reply.
Clyde
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Old Oct 11, 2008 | 04:16 PM
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Originally Posted by Scott Marzahl
Gary,
Should he make a slip fit pinion bearing and play with the pinion shim, maybe increase shim thickness?


Scott
Hi Scott I have a set up bearings made up and the pattern looked not too bad when I used them. The pattern only narrowed on the top after I pressed the new bearing on. This is the original gear set.

Clyde
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Old Oct 11, 2008 | 05:13 PM
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Originally Posted by GTR1999
Are these new or used gears?
The lash is open if new gears and the drive pattern is deep. I can't see enough of the coast to say they look high. If used gears go for the best coast pattern you can get.
Here are two more pics, hope they are better for you. The gear set is the original set, 3.55's

Thanks again

Clyde







Thanks
Clyde.
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