R-134A conversion was done on my Mighty Max. Works by changing some o-rings and the evaporator...to the best of my knowledge.

Those little light bulbs are now 30.

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: #277 Montero