so im a bad lucky guy cause the two diferentials stripped in a very short time, the diff feel very quiet and smooth at the beggining but after a few laps on the truck it began really noisy, i dont know what to do give it a try again or kick out the gear diff. The first diff i filled with silicone oil that comes in the kit, and the second one i filled with associated black grease.
Which silicone oil shocks are you running? and which springs? my track is very flat with just a couple of jumps, it is a 1/8 tt truck and i need lot of top end speed