OD on my truck stopped working. I was able to dig out the sealant on top of the solenoid and found that the ground wire was broken. Its a big fat wire that goes into the solenoid but the internal wires are something like 26 gauge. I had to resolder the wire to the body of the unit, if I remember correctly, and it worked fine. Use RTV to refill the area where you remove the sealant. Dig slowly and carefully as well. If you mess any connection up you can just resolder it when everything is apart.
John

SOLD!!: 91 LS 95 SR Rear LSD front 95 LS front brakes Dons Bumper 10k Gorilla/Promark winch Safari Snorkel Dual bouncy 31's

1991 Chevy Suburban 33's. All other stock.