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 Post subject: Pinion depth setup
PostPosted: Sun May 06, 2018 11:17 am 
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Joined: Sat Nov 27, 2004 8:03 pm
Posts: 4628
Location: IRWIN PA
Car Model*:
Hi guys, I am trying to set pinion depth on a 489 casting 8.75 chrysler rear.

I have some what seem to be oem used 3.91 gear set.

The depth tool i am using has instructions to follow to check depth of pinion etc. Problem is that there are no markings or stampings on the pinion gear head.. no checking distance or no +2 or anything.

The instructions reference those numbers.

Any help or alternatives appreciated.

I have loose set-up bearings and a micrometer for setting up and taking measurements. I have done this before using the tool and it worked fine. Those gearsets probably had checking distances stamped on the pinion.



Greg Ondayko
69 Dart

 Post subject: Re: Pinion depth setup
PostPosted: Tue May 08, 2018 6:29 pm 
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Joined: Thu Oct 17, 2002 7:27 pm
Posts: 11707
Location: Park Forest, Illinoisy
Car Model*: 68 Valiant
You may have to start with about an .090" thick shim and check your pattern. PITA, but without a reference number you're flying blind anyway.

Did you get a solid spacer kit too? That makes life a ton easier setting it up.

Official Cookie and Mater Tormentor.

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