The starter shaft fits through the rear suspension between the driveshaft and the upper link, and reaches through nicely to the back of the engine. I like it as i can carry the car, glow starter, starter, tranny and fuel bottle without a hauler bag or a the boot of a car.
The hpi versions are for 'force' based engines and this link is for the fastrax ones.
http://www.cmldistribution.co.uk/cat...subMenu=CR-NIT