ClassicOldsmobile.com - View Single Post - A-body interchanging differentials?

2blu442 · 02-07-2008, 08:03 PM

I too have heard that the 1964-72 will interchange with a slight width difference between 64-67 and 68-72 but have never swapped the rear ends myself. I have put an Olds under a Cheby and right now have a Chev*lle 12 bolt under my 1970 442 and they have a different U-joint, the Olds being bigger. But they make a U-joint that has two caps the correct size for the Chev and two for the Olds, I got mine at a local NAPA parts store but I believe you would be able to find them at any of the large chains. I have both a 1966 rear in the garage and several 68-72 units stacked up behind the garage so if you need it I could take some measurements for you. John

02-07-2008, 08:03 PM	#4 (permalink)
2blu442 Senior Member Join Date: Sep 2006 Location: Medford, Oregon Posts: 806	Rear Interchange I too have heard that the 1964-72 will interchange with a slight width difference between 64-67 and 68-72 but have never swapped the rear ends myself. I have put an Olds under a Cheby and right now have a Chevlle 12 bolt under my 1970 442 and they have a different U-joint, the Olds being bigger. But they make a U-joint that has two caps the correct size for the Chev and two for the Olds, I got mine at a local NAPA parts store but I believe you would be able to find them at any of the large chains. I have both a 1966 rear in the garage and several 68-72 units stacked up behind the garage so if you need it I could take some measurements for you. John __________________ 1964 Cutlass Factory 4spd 1965 442 4spd 1967 442 Auto 1967 Cutlass Convertible 1968 442 Auto 1969 442 W30 Auto 1970 442 4spd 1971 Cutlass Flat Top Wagon 1973 Chevy 3/4 Ton 454/TH400 Tow Vehicle Only the tow vehicle is finished!