I have Belltech parts on my '90 Sport Truck. 2 inch drop spindles plus 1 inch drop springs in front and 4 inch shackles on rear plus Belltech sway bar at rear. I am running factory stock 15 inch chrome slot wheels. No problems with clearance anywhere.
Please try this, when you lift the hood a courtesy light comes on (nite time oil checking). Remove the bulb or disconnect the wire to it for a few days and see what happens. Maybe the the mercury switch has gone sour.......Cheers.
Please report on the ride difference going from the 20's to the 15 X 8s. I have seen so many YouTube examples of lowered trucks then riding on very tall wheels and wonder why. Lower a truck suspension then raise with extreme rims ? Cheers.
Things I don't like to see. Crease in the back bumper, trailer hitch used or decoration ? license plate bent from hitch hitting. Roof spoiler could mean holes in roof, bad for headliner. Mix of tires/wheels + 5 speed = clutch = 4 wheel drive wannabee. How are the electricals, does everything...