[Gustav]

Yeah,you could do it for much less! just i already have these parts and reckon they should work.I'll never use the locker anyway because when i tried it it did nothing but bend MIPs.

Billy tells me that adding threads to shafts is no problem,any threads per inch i want so if you can find someone with a lathe you should be able to make the whole part on that.

You could integrate the shape inside for the bevel gear(it's just a little raised section and a recess for an o-ring to sit in) into the part or you could just use the diff ring gear in between since it already has the shape in it (just remove the part the bearing sits on) or if you like i'll send you the plate from a hot racing diff for free.(it's the same as the ring gear just without the teeth so you could just use the ring gear if you buy a complete diff on e-bay.