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1969 GMC · 12-26-2008, 05:35 PM

I agree with what he said ^ but if you are dealing with a half ton axle, I don't know when they went from the clutch style posi to the gov-bomb.

14 bolts did not come with factory detroits unless it is a military cucv truck, which all had them stock. generally speaking, the 14 bolt gov-bomb is the strongest of all the gov-bombs, but I refer to them as gov-bombs for a reason. When they go, they go. At my old job a C3500 dump chassis w/ a gov-bomb decided to give up the ghost and it ruined just about the entire axle. The brakes, wheel bearings, seals, all the bearings in the diff, gear set, and the gov-bomb itself were all trashed because it went. The best thing you can do for a 14 bolt with one is to take it out and swap in an open carrier from another axle, and a detroit.

edit: If you go junkyarding looking for an older chevy with an eaton and the no-spin, they have the G86 rpo, usually just called no-spin. Trucks equipped also get a sticker or a metal tag riveted somewhere inside the cab to let the operator know.

12-26-2008, 05:35 PM	#10
1969 GMC Registered User Join Date: Feb 2003 Location: The Rubber City Posts: 5,498	Re: rear locker?? I agree with what he said ^ but if you are dealing with a half ton axle, I don't know when they went from the clutch style posi to the gov-bomb. 14 bolts did not come with factory detroits unless it is a military cucv truck, which all had them stock. generally speaking, the 14 bolt gov-bomb is the strongest of all the gov-bombs, but I refer to them as gov-bombs for a reason. When they go, they go. At my old job a C3500 dump chassis w/ a gov-bomb decided to give up the ghost and it ruined just about the entire axle. The brakes, wheel bearings, seals, all the bearings in the diff, gear set, and the gov-bomb itself were all trashed because it went. The best thing you can do for a 14 bolt with one is to take it out and swap in an open carrier from another axle, and a detroit. edit: If you go junkyarding looking for an older chevy with an eaton and the no-spin, they have the G86 rpo, usually just called no-spin. Trucks equipped also get a sticker or a metal tag riveted somewhere inside the cab to let the operator know. __________________ 1969 GMC K2500 1996 Honda Accord 2007 Kawasaki KLR 650 Last edited by 1969 GMC; 12-26-2008 at 05:37 PM.