Tamiya TT01 Rear Knuckle Arm Upgrade Alloy with Collars TT022 by GPM  [TT022]

TT01 Rear Linkage Replacement

This alloy rear knuckle arm with collars is supplied as an aftermarket replacement for the Tamiya TT01 chassis and is identified as part TT022. It takes the place of the stock knuckle to give a more rigid mount for rear hubs while keeping the original mount pattern for the TT01.

Functionally the arm is part of the rear suspension linkage, helping to preserve wheel alignment and axle position under braking, acceleration and cornering. The included collars set hub position and maintain correct spacing on the axle to support consistent handling during setup.

Fitting uses the same procedure as other TT01 rear knuckle swaps: remove the OEM knuckle, transfer hubs, pins and hardware, then install the replacement. Inspect hardware and contact faces for wear and re-check alignment and free spin once installed.