have you had them done before john ,where is he based
that's why I said decent ones john
I've done them before myself, the only tricky bit is getting the clutches apart to replace the seals.
You'll need a 3/4 drive socket set for the nut on the back and a long bar with a couple of holes in to hold the flange, nut is 220ft/lb I think. Aside from that and some circlip pliers is easy peasy.
Its an evening's work.
Got the 3/4 socket set and my mates got tons of tools I can borrow so should be alright. Lancing marine have got the kit. It's £350
cheers for the link. anything I need to watch out for when stripping the box