Traxxas X maxx Problem

[Argerome64]

I have reassembled the truck a handful of times trying to find the problem.
The truck makes loud clicking noises and does not always move forward even though the motor spins and the pinion gear is on tight..

Thought maybe before I take it in to a shop I could try asking on this Forum for help because they're charging me over 150.000 bucks only on labor to fix it..

I have reassembled the truck a handful of times trying to find the problem.
The truck makes loud clicking noises and does not always move forward even though the motor spins and the pinion gear is on tight..

Thought maybe before I take it in to a shop I could try asking on this Forum for help because they're charging me over 150.000 bucks only on labor to fix it..

Video-

 

[HPIguy]

Gear mesh possibly wrong, diffs possibly shot.

 

[Tunedfrog]

Are you absolutely sure the pinion isn't loose?