Because Unitrack geometry is fully standardized

Genuine Traxxas replacement part 5779

These arms have a new design that shifts the shock mounting point out towards the wheel for added high speed stability

Historically authentic

PowerHobby Pro Series Rubber Sealed Bearing Kit FOR Traxxas Revo 3.3 22 Parts Because Unitrack geometry is fullyPowerHobby Pro Series Rubber Sealed Bearing Kit All the bearings in the Pro Series Kit are all ABEC 5 Rated and have a specially engineered lubricant to resist the heat and abuse caused by the additional torque and speed. Rubber sealed high quality steel chrome bearings designed for the R C racing enthusiast. Fits: Traxxas Revo 3. 3 Includes: 5x11x4mm x16 6x12x4mm x7 12x18x4mm x4 6x13x5mm x4 10x15x4mm x3 8x16x5mm x2 5x8x2. 5mm x2