Originally Posted by Pointy71

I believe I run 553 on my diffs. Not 100% sure (not rebuilt in a while).

I just got new 90C batteries; car is MUCH quicker. Pulls like crazy. I now have a problem the car lifts it front wheels and the tires balloon very badly. Like disks so thin.

At the same time the car is practically pulling wheelies along the full straight.

Normally I would think I need thicker oil in the center diff to push more power to the rear wheels.

But... I'm pulling wheelies already so it is not like they are not getting enough power...

Any tips on tuning?