TP3D has created an effective gear cover for the associated B6.1, B6.2, SC6.1 or SC6.2 layback and laydown transmission. This cover is a necessity to keep dirt and debris out of your spur gear. It attaches conveniently with 2 screws on our custom designed backing plate which bolts directly in place of the stock spur gear guard. The cover attaches to the backing plate with 2 4/40 screws. This is a must for loose dirt racers! Street stock, MWM, late model or sprint cars. Even Drag racers using the Associated layback or lay down transmission will benefit.