turns out the force 12 red is an sg type crank engine.
i got clutch nut similar to team associated's clutch nut part # 2313 but cant get the engine mounted on the car...
if i move it back, the pull start hits the diff case and cluth bell ends up short of the spur... if I move it forwards the engines mount holes do not line up with the holes in the chassis....
any ideas please?