[Bounty__Hunter]

Welcome to the Z.

I would recommend a radiator from a '87-'90 as they changed significantly in '91.

The 4.0L uses two temp sensors, one for the gauge and one for the 'puter.

As for the steering, likely worn tierod ends and/or a loose/worn front trackbar. Have your OG turn the steering wheel back and forth quickly against full lock while you watch the steering linkage and front trackbar for worn ends.

trans power/comfort is simply shift points for the transmission. Power setting shifts at a higher rpm, comfort setting will get better mileage.

oil pressure sounds fine. Keep us updated on how it goes.

	Track bar A track bar is a component of a car suspension system that provides lateral location of the axle. While the purpose of the rear suspension of an automobile is to allow the wheels to move vertically with respect to the body, it is undesirable to allow them to move forward and backwards, or from side to side. It is this latter movement that the track bar is designed to prevent. It is a simple device, consisting of a rigid bar running sideways in the same plane as the rear axle, connecting one end of the axle to the car body or chassis on the opposite side of the vehicle. The bar is attached on either end with pivots that permit it to swivel upwards and downwards only, so that the axle is, in turn, allowed to move in the vertical plane only.