Originally Posted by
monkeyracing
Thanks, Carl. All things considered, I'll probably stick with the stock diff and extra shims (3 per side) in my M03. It's reliable for 6 months at a stretch of racing twice a week. Even then it doesn't really need more than a cleaning. Besides, I'm finally going to focus on a single car this season and that's the 05 v2.
Trying to decide where to go with the M05 diff. Think I'll run the 3Racing with some heavy silicone and see where it goes. May look at the putty option later, depending on how stable the car is.
No, not 3 per side, two on one side and a single shim on the other, so three in total. I try a fourth shim (two and two) and it too tight plus the plastic side doesn't close down all the way without being warped. If the gearing is too tight, you may have to run the gears in a drill with some polish. Build the diff and put on side of the out drive in a cordless drill and spin at a slow speed while holding the gear. Once completed clean out the gears an pack with diff putty.