modded, 5.13 gears, sas'ed dana 44 front 35x12.5x15 goodyear wranger kevlar, home built front winch bumper, manual transmission converted, drop down hidden table on tire rack.
almost done at gathering the parts needed to do a auto to manual conversion on my truck. the auto thats currently in it just lost reverse gear. which means the rest will follow very sortly. looking forward to my truck being manual.
Did you check fuses? Bottom row second from right should be for shift lock. It might be a simple blown fuse, this exact same thing happened to me when I lost reverse.
all fuses are good. suspecting clutch packs are shot for reverse. and have been finding slight metal filings in the transmission fluid so. I know the tranny is almost dead.