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Discussion Starter #1
Does anyone know if there is a way to distinguish a 1965 Chevelle rear from a LeMans/GTO rear. Physically the GM A body rears are compatible, but are the codes and part numbers the same ????

Also when did Pontiac go to the wide track rear (54 1/2") ? I've heard 67, but am concerned that the 66 rears might also be a inch wider than that in the 65s.

I'm looking for an early 65 rear if anyone has one sitting in their barn.

Mike [email protected]
 

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Which rear parts do you need besides the axle assembly? You should be able to pick up all the sheet metal, I just did my `65 and did the full trunk kit, the panel between the rear window and trunk and the bottoms of each rear quarter. Surprisingly (or not) you can find alot of the stuff on e-bay, just be sure to look for the USA made stuff as the quality seems better.
 

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Discussion Starter #3
Rukee

I should have been more specific. I'm only looking for the rear differential. (Sheet metal and body wise I'm fine. ) I just need to get smart on the interchangeablity of the rear diffentials and if the GM A bodies have the same parts numbers and codes. I am looking to find a correct replacement for the rear currently in my car. Mike
 

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Does anyone know if there is a way to distinguish a 1965 Chevelle rear from a LeMans/GTO rear.

Pontiac 8.2" 10 bolt Differential cover


Chevy 8.2" 10 bolt Differential Cover

Physically the GM A body rears are compatible, but are the codes and part numbers the same ????

NO, BOP also use different part number. Here are the differences with BOP rear ends;


Also when did Pontiac go to the wide track rear (54 1/2") ? I've heard 67, but am concerned that the 66 rears might also be a inch wider than that in the 65s.

From 1964-67, the housing dimensions measure 56.5 inches, from flange to flange. Total measurements with the drums in place is 60.5 inches. 1968-72 rearend housings measure 58.5 inches from flange to flange, and with the brake drums in place, the total dimensions measure 62.5 inches.

I'm looking for an early 65 rear if anyone has one sitting in their barn.

These guys were parting out a 65 GTO convertible about 4 months ago, ask for Greg or Dean

http://www.oldcarcityusa.com (770) 382-6141, they work Monday, Tuesday, Thursday and Friday from 9:00 till 4:00.


I hope this helps, also there were differences in the way the coil spring attached to the differential between the years. If you choose to use a 67 differential it may reguire that you change the coil springs to the same year as the rear end.
 

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Discussion Starter #5
Nice; many thanks. I'll keep that in my pocket when I hit Carlisle this year.

Any chance of getting a "my recent topics" button on the menu line. The Corvette Forum has it and it is really helpful in keeping track of ongoing exchanges.

Thanks again//Mike
 
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