Rear end dilemma - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**dtkarst** · 11-09-2015, 11:38 AM

Went to do a rear end swap on my 66 gmc this weekend and ran into a few problems. I was hoping I could take the rear end from my 63 parts truck and swap it right under my 66 but it won't be that easy. It is physically bigger than my original one and would require me to cut the drive line a couple inches. The original rear end from the 66 is toast and needs a complete rebuild. It's a 3:54 ratio I believe. Anyway does anyone know where a complete rebuild kit can be bought? Carrier and gears etc. or what my next step would be?

11-09-2015, 11:38 AM	#1
dtkarst Senior Member Join Date: Nov 2010 Location: Hays, KS Posts: 2,490	Rear end dilemma Went to do a rear end swap on my 66 gmc this weekend and ran into a few problems. I was hoping I could take the rear end from my 63 parts truck and swap it right under my 66 but it won't be that easy. It is physically bigger than my original one and would require me to cut the drive line a couple inches. The original rear end from the 66 is toast and needs a complete rebuild. It's a 3:54 ratio I believe. Anyway does anyone know where a complete rebuild kit can be bought? Carrier and gears etc. or what my next step would be?

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