TRAXXAS TRX4 TRAIL CRAWLER Steel #45 CVD Joints For Front - 2pc set - GPM TRX44571/JT  [TRX44571/JT]

Product major function & usage:

Leading the gears to spin and transfer the energy from the motor

Harden steel #45 plus nutrified and hardening process, more durable to use

Same as original

Very smooth to use with and highly recommended