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Old 04-12-2012, 09:29 PM   #1
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Default Need Help With Diff Building!!!!

Watched Adam Drakes rebuild video and noticed he does not use these when rebuilding his Diff. I rebuilt my center leaving these out and it seems to work best. I have a feeling you guys are going to make me put them back in I'm having major problems getting these diffs to spin freely after rebuild. How does the shimming work? Should I use what the book recommends?

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Old 04-12-2012, 09:38 PM   #2
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Watched Adam Drakes rebuild video and noticed he does not use these when rebuilding his Diff. I rebuilt my center leaving these out and it seems to work best. I have a feeling you guys are going to make me put them back in I'm having major problems getting these diffs to spin freely after rebuild. How does the shimming work? Should I use what the book recommends?

Those alum. Inserts are for the Heavy Duty diff case. You have to use them w that case.

If I'm not mistaken, no one really uses the HD case any more
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Old 04-12-2012, 09:44 PM   #3
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Originally Posted by JoePit View Post
Watched Adam Drakes rebuild video and noticed he does not use these when rebuilding his Diff. I rebuilt my center leaving these out and it seems to work best. I have a feeling you guys are going to make me put them back in I'm having major problems getting these diffs to spin freely after rebuild. How does the shimming work? Should I use what the book recommends?

are you building them with the flat side facing inwards?
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Old 04-12-2012, 11:07 PM   #4
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are you building them with the flat side facing inwards?
No the Flat side is facing up. The rear diff was giving me the problem. I just took it apart and removed the spacers that go over the o-ring. Put back together and added 2 more shims on top of the 3 that's called for on the right side of the car. Moving nice and free now. The ring gear was making contact with the diff case. Now I have to take apart the center diff again and put the alum. inserts back in.

Missed my 1st race tonight due to building diffs since noon PST. 1st time building diffs for me so I expected some problems, but not what i went through today. I also installed all the parts to bring my RTR to a roller.

Thanx for all the help... It's been a real long day



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