in the absence of a hoist a piece of scaffold pole or a fencing post can be laid from dashtop to the bulkhead behind the seats and a ratchet strap slung from it to take the weight of the gearbox ( a bit course i know but needs must n all that ) i managed to replace mine last time without removing the seatbox although it did involve removing one of the mounting brackets from the side of the qearbox. hope this helps