
The Optima Mids original OT-88 isnt much of a slipper. So i designed my own top shaft that fits nicely into the Mids gearbox, but outside it firts to the Associated B4 spur gear and slipper clutch. It makes the car easier to drive in low traction surfaces and also protects the tranny from shock loads. Also much easier and cheaper for you to get spur gears. If you want to buy this top shaft, do buzz me.