Aussie Locker provides a front mechanical locker. There are the perennial and expensive ARB air lockers for the front, also. I would suggest finding an air locker from a Mitsubishi Pajero / Montero / Shogun with 9.5" ring gear for the rear, or a 9.0" ring gear unit from a Challenger / Pajero Sport / Montero Sport....thus matching whichever rear axle you have.

Cheers,
Russell


1988 Mighty Max turbo 2.6 service body
1980 Power Wagon W400
Sundry Mitsubishi Montero Gen 1 parts, Gen 1 and Gen 2 Max parts
Parts vehicles: 89 LS Montero 4-door, 2002 Sport AWD
For Sale: 1989 Power Ram 50 extended cab, #277 Montero