Won't start or won't crank? If it won't start look under your dash there should be a ground wire attached to your parking brake pedal assembly. I had one not start do to the bracket braking from the side of the tub. So e times it would make contact and some times it wouldn't.. I think the wire runs the fuel pump. Probably not if but may be worth the look.
88 YJ 35's 8.8 rear, family style roll bar, ax-15 external slave conversion, Custom double D fab dash 4" of lift taurus fan, Head light wiring upgrade, MSD 6al, JB conversions SYE, 258 with RV cam, Long tube headers, Borla exhaust. 1"mm, Auto meter gauges.