80 series rear diff lock.

Hey Truckster, ya can't make a sweeping statement like; LSD in the front is dangerous.???????? Thats crap mate, Ford have been fitting LSD's into front diffs of Bronco's, F series trucks, since they were first built. 1980 or so, with the twin axle front end in them. I've owned two of them and they are a formidable 4x4 and certainly under-estimated their capability, in their day. They would run rings around any Toyota, Nissan, even Rangies in serious, hard 4x4 country back then (80's). Much to do with their excellent Low-range gearing (56:1) low-low, grunty engines, tight turning circle (they could turn inside the circle of a Tojo), choice of wheel bases, very supple suspension, despite rear leafs and not to mention a pair of LSD's front and back. And the myth about the huge body was largely that. Only once did the body size stop me from squeezing through a tree cut by a Suzuki owner! In fact, the wide wheel track was another of it's advantages, as it could straddle a lot of washouts that had the Jap cars falling over. Horses for courses buddy, but that front LSD was a ripper in a deep bog, just rocking the steering was enough to get the wheels to bite, and through you go. Not much stopped them and they did it easy, without diff locks!

Common knowledge using an LSD from the REAR of a car is dangerous.

Lots of threads on the Patrol list on it, and ALL say Bzzzzzzz... Even on 80scool list they say the same thing......

Go for it, nothign stopping you, except axle spline sizes etc.