Originally Posted by lcc65

Have you tried the stock 20t front pulley? I ran for two days with the stocker, switched over to the 19 for two battery packs, HATED IT! It made the back of the truck come around even more. pulled off the track, made the swap back to the 20t, right back on the track with no other adjustments, back of truck was way more stable entering high speed corners.

Tried 100k front diff fluid, really stable, but at the expense of slow infield switchback type turns (obviously)! Going to try 80k next. I've tried 5k, 10k, 30k, and 120k..30k seems best so far.