dont get one.. stock diff is better for drift in a tt-01.. lock the rear diff if your having drift troubles


A Front 1 Way makes the Front Wheels free wheel when in Reverse and During Braking.. This on a Race track causes early Turn in on rubber , but on ABS or PVC causes under steering as there is no force being applied to the wheels to keep the grip ratio even on all 4 corners....
Essentially turning the AWD into a RWD drive under Braking and Reversing.

A Controlled Slide requires the Traction to be broken and Regained Constantly, if You remove the Traction during Braking or coasting this upsets your drifting..

We tried Drfitng a HPI Pro-4 Harra Edition with a Front 1 way and it was hopless.. No matter what technique it would just blanantly under steer..
Great for Rubber Racing, just not for Drifting..