RC18T Drivetrain Problems

[Re~Mix]

Hey. I bought an rc18t factory team over the winter for a project and have gotten around to running it a bit this spring. However, the drive train has been giving me problems since the start. It keeps slipping out, even after I completely disassembled, cleaned, and reassembled the front and rear diffs. I'm only running a mamba 5400 and 8.4 volts, I don't think power and torque is becoming an issue yet.

What I'm thinking of doing is tightening the diffs until I can't screw in any further (wise or unwise mini owners?) since that always worked with my losi xxx-t. Otherwise I think it could also be a stripped diff-nut, which i think is molded directly into the rc18t outdrives.

Any help is greatly appreciated.