I drove up to Inchworm Gear and had jim do the machining. I built my own circuit beforehand so I could test it there....took the scenic coastal route back home w/ lots of stops on the way to let the diff cool. I'd have a machinist make the axle housing mods if you can part w/ the vehicle for a week. I couldn't, as my rig is my wife's DD. Only place I can think of is a shop in the San Fernando Valley that does work on cruisers...can't remember the name. There's also a shop in Orange (TJ's Offroad or something like that) that ARB recommends for their air lockers. They could probably install it competently.

--Jim