Gear case strengthen pad(m4x4.8*2pcs) Camber Link Brace Rear V2, V3Fits Standup Mid Motor Case, both 3 and 4 gear. And in non-quick access FM trans case...
SB401 Center Gear Diff Case-77T(*1pcs). Cage(*1pcs)The Black material is typically harder than the grey. Spurs should last a bit longer with the black material...