Removable Center Hub

Hole size (drilled through cowl): 3/8"

and transporting LiPo batteries

but they can be used in most other applications as well

Traxxas 4983 Transmission Complete (For T-Maxx 3.3) TRX-4 Parts Removable Center HubTraxxas 4983 Transmission Complete (For T Maxx 3. 3) Bring your T Maxx 3. 3 back to life with this complete, fully assembled genuine Traxxas replacement transmission. Manufactured to the same specifications as original equipment, it restores smooth and reliable power transfer for aggressive monster truck driving. Because it arrives assembled, installation is straightforward remove the old unit, bolt this one in, and get back to bashing. Genuine