[tdi250]

I'm having similar problems wioth my newly built 410v3 to be honest.

It all seems free enough when the pinion is removed but when I put the pinion on it seems very noisy and it nose dives like crazy over jumps.

I can roll the car along with pinion off and it rolls nice a free and quite but when I put the pinion on it doesn't seem free or quire which is very odd.

I've been racing long enough to know how to mesh the pinion to spur and I know its not a damaged spur or pinion, i've also swapped motors just in case.

It's all very odd, i have noticed that there is some resistance to the drive when the steering is on full lock and I think i may have put too much threadlock on the driveshaft pins which is causing this but that shouldn't effect things in a straight line.

I think i'm going to have to strip it all down and start again tbh.