What rear end is this? looks like a 10.5 ring gear differential to me - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sduckworth13 · 04-30-2011, 11:37 PM

I have a 1967 GMC 3/4 ton pickup and I discovered I might not have the original rear-end underneath my truck. I have been doing some research today and this is a 8 lug 14 bolt which I believe is a 3:73 with the 10.5 ring gear used from 1973-1985? and is a full floater axle. Does anyone know what years these were made? I'm swapping this rear-end out for 5 lug suspension out of a 1974 Chevy 1/2 ton truck.

04-30-2011, 11:37 PM	#1
sduckworth13 Registered User Join Date: Mar 2011 Location: Kansas City, Missouri Posts: 3,541	What rear end is this? looks like a 10.5 ring gear differential to me I have a 1967 GMC 3/4 ton pickup and I discovered I might not have the original rear-end underneath my truck. I have been doing some research today and this is a 8 lug 14 bolt which I believe is a 3:73 with the 10.5 ring gear used from 1973-1985? and is a full floater axle. Does anyone know what years these were made? I'm swapping this rear-end out for 5 lug suspension out of a 1974 Chevy 1/2 ton truck. Attached Images Last edited by sduckworth13; 05-01-2011 at 12:22 PM.

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