|09-01-2012 08:29 PM|
|big gear head||The 8.2 was used in Chevelles, El Caminos and Monte Carlos up to '72, so you could very well have the 8.2 rear end. I haven't seen a factory installed 8.5 rear end in a '71 or '72 El Camino.|
|09-01-2012 06:59 PM|
|SSedan64||These years/models came with 3 different rears, if you don't have the square identifiers & Pinion Nut is 1-1/8" it's an 8.2"|
|09-01-2012 06:26 PM|
Help Help According to the replies and pictures I have a 8.2 rear end. NO tabs at 5&7 o'clock. But after talking to an supplier '71 and up Elcos were 8.5.Does this sound right?
|08-30-2012 01:53 PM|
|SSedan64||Wow, that's a lot of effort for the Period Correct look. It doesn't surprise me tho' what some guys will do.|
|08-30-2012 01:34 PM|
|big gear head||Yea, but I know of at least one person who cut the lugs off. Seems like a lot of trouble. Who really cares if it looks like a 8.2 or 8.5 anyway? But it seems to matter to a few people out there.|
|08-30-2012 12:54 PM|
I didn't know those 2 would interchange.
Hard to miss those Square lugs on the 8.5" tho'.
Good 7.5" vs 8.5" 10-Bolt Pic >> Dorians Diff page!
|08-30-2012 12:43 PM|
|big gear head||You have to be carefull about judging a rear end by it's cover. The Chevy 8.2 and 8.5 covers interchange. I've got a few 8.2 rear ends right now that have 8.5 covers on them, and I know a few people who have installed 8.2 covers on their 8.5 rear ends to make them look like the 8.2.|
|08-30-2012 12:27 PM|
X2^^, on the 8.5" square Lugs.
Seen here >> OLDSmobility.com - The 1967 Oldsmobile Cutlass and 442 Resource - GM 10-bolt Differential Technical Information
The Chevy 8.2" has an inverted V on the cover just like the 8.875" 12-Bolt.
BOP 8.2" has scalloped sides on the cover >> 8.5" rear axle
|08-30-2012 10:32 AM|
|big gear head||The 8.2 has a 1 1/8 inch pinion nut and the 8.5 has a 1 1/4 inch pinion nut. The 8.5 has some square corners on the bottom of the casting in the 5 and 7 o'clock positions that can be easily seen from the rear of the car.|
|08-30-2012 09:45 AM|
1972 El Camino differential ID
How do I find out which rear end I have? '72 elco 350ci 10 bolt. Is it an 8.2 or 8.5?