Originally Posted by 2-shot (Post 12599627)

I have a question regarding my front and rear diffs. Now that I'm about half way into the build, I'm second guessing the shim placement on my front and rear diffs. Both diffs turn smoothly if I turn either side of the outdrive, on both front and rear. There's no binding or spots that it's not smooth. They both turn easily.
What I'm second guessing is how noisy both the front and rear diffs are. There is a little "growl" to them as I spin the diffs.

Is this normal since they are new?
Will they become less noisy as they are getting broken in?
Should I disassemble the diffs and try re-shimming them?

Like I said, they both spin smoothly and easily with no binding! Just a little worried about how noisy they are. I don't recall if my diffs were that noisy on other kits I've assembled.

Thanks in advance for your input and help!

Originally Posted by 2SlowTC (Post 12599631)

As long as the gear mesh is good with no binding your good to go! Wait till you run it...it:lol: sounds like a freight train coming down the straight!

Originally Posted by 2-shot (Post 12599658)

LOL!!! Yeah, the gear mesh is great! Can't wait to hear it now!!! LOL!!!

Thanks for answering my questions!!!

Originally Posted by Mizchief (Post 12599996)

What would be the consequences of using no shims even if it needed say 2 of them? Other than getting them lined up you can do a diff removal and re assembly in a few mins. Say if you want to make a change during race day would it be cool to leave it unshimmed for the remainder of the race day?

Originally Posted by colormegone (Post 12600195)

Does the sharp angle of the rear diff wear the drive line pins faster than the new one with less angle? I bought my truck as a roller and it came with worn pins. I replaced them and had lots of wear on them in one weekend.... Front has no problems since it is straight

Originally Posted by colormegone (Post 12600195)

Does the sharp angle of the rear diff wear the drive line pins faster than the new one with less angle? I bought my truck as a roller and it came with worn pins. I replaced them and had lots of wear on them in one weekend.... Front has no problems since it is straight

Originally Posted by Mizchief (Post 12599996)

What would be the consequences of using no shims even if it needed say 2 of them? Other than getting them lined up you can do a diff removal and re assembly in a few mins. Say if you want to make a change during race day would it be cool to leave it unshimmed for the remainder of the race day?

Originally Posted by jhautz (Post 12600269)

Yes. The angle rear diff case is much better for pin and outdrive wear.

Originally Posted by Hoese37 (Post 12600291)

The new rear case is much better. If you dont replace the cups along with the rear shaft/pins, it makes it wear much quicker.

Originally Posted by Mizchief (Post 12599996)

What would be the consequences of using no shims even if it needed say 2 of them? Other than getting them lined up you can do a diff removal and re assembly in a few mins. Say if you want to make a change during race day would it be cool to leave it unshimmed for the remainder of the race day?

Originally Posted by Cain (Post 12600831)

so, who is going to be the first to mount of the losi rally body set and tires :)