Scott,

the 230 kompressor will be close to impossible without major modification. It's powerband is also not appropriate, all though most likely better than the 230 motor.

Best to start by switching to the 6.17:1 ring and pinion gears for the diffs.

For motors, it's best to either go with a G engine and transmission, or a 380 V8 from the early SEL from same years as your G. The 500 will also fit, from mid eighties, but the 380 is a lighter block. Either way, both are a bit too heavy in my mind for boulder trails, but for baja, they'd be a great swap.

OTherwise, turbo diesel is best in my choice, except in the cold winter when you'll need to mix in Kerosine.

mserpe@yahoo.com