Proper Gear setup pattern help!!
Thread Starter
Staging Lane
Joined: Nov 2003
Posts: 76
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Proper Gear setup pattern help!! So I'm going to say that I am fairly mechanically inclined, as many are on this forum. C5 Getrag differential is more complex and requires special tools. So I made a few of my own. Trying to install motive 3.90's. This is a very low mileage differential. Old Bearings. I have the backlash at .008 thousands but not sure about the test pattern I am getting. Last thing I want is dreaded whine or howl.
Advice needed please!
Bryan
Advice needed please!
Bryan
Joined: Aug 2007
Posts: 24,241
Likes: 89
From: Turnin' Wrenches Infractions: 005
The compound is too thick, also remember you must hold the ring gear and turn the diff with drag to get a good pattern. Now, from what I can see your pattern is going off the edge of the tooth, and that's not good at all.
Thread Starter
Staging Lane
Joined: Nov 2003
Posts: 76
Likes: 0
Here's after I moved the pinion in 5 thousands. Does this look acceptable?
Thread Starter
Staging Lane
Joined: Nov 2003
Posts: 76
Likes: 0
3.90s with the m12 are plenty low. I love it. After having 2 f body's with 4.10s M6 I just have to have that... breaking them in. Changed the fluid today with valvoline synpower 75w90 and friction modifier. I had them reuse bearings. The housing only had 44k on it. They Looked And Felt perfect.
