Yup! if yuou have a complete bottom end from your old engine just swap everything accross, gearbox will slot straight in, engine case will slot in no prob!! when you slide the gearbox back in the is a spring wich pokes out!! near the bottom, just make sure you hold that out the way (i used a wide blade flat screwdriver) to slide the box home... One other thing take the gear selector switch out first before putting the box back (is on the sprokect side, 1 bolt and size of a small coin with wires goin into it) if you dont you may damage it. and youll find netural light dosent work!! if you need any help just pm me.