You can fit the 2row Exploder (91-94 4.0L) in. You'll have to retrofit the fan shroud and hoses, as they aren't likely to be in the same places. The bolt holes do fit, though.
Not all Exploders had this, even with A/C and an automatic transmission. It was an option.
It's probably not necessary, but won't hurt anything as long as you keep the hoses away from the belts (BTDT). It MAY be nice if you try to haul that motorcycle into the high desert or over the Sierra in summer.
This is a common retrofit for 2.9Ls, as they are quite sensitive to cooling system problems and the stock system is barely adequate under normal conditions.
If you sit on I-80 a lot, the thing to watch is the fan clutch. You can replace the fan with one from a V6 with automatic as long as you make sure it rotates in the same direction. Serpentine belt systems rotate opposite V-belt systems.
