[Tom Ashmead]

I tried to de-code this rearend to find out what size the ring gear is.It is a 10 bolt & dosn't have any "lugs" or "ears" on the bottom of the housing casting.
The pinion nut is 1.125 & it is a multi leaf spring perch houseing.
I think it's out of a 67.
Did they make a 7.5 ring gear that year?
I am looking for a 8.2 & I dont want to buy the wrong rearend.
This rearend is for sale but I didn't want to tear it down in front of the owner if I was'nt going to buy it.
The code is :
PR0702G1.
I de-coded it as a 12 bolt but it's a 10 bolt.
Short of disassembleing it, is there any other way of telling what size ring gear it has?
Thankyou for your time...Tom

[HwyStarJoe]

http://www.camaros.net/years/67/67rearcodes.html
http://www.camaros.net/years/68/68rearcodes.html
http://www.camaros.net/years/69/69rearcodes.html

Take the cover off and measure the bolt heads.....
The 8.2" 10-bolt has a 1 1/8" pinion nut and 3/8" ring gear bolts with 9/16" heads.
The 8.5" 10-bolt has a 1 1/4" pinion nut and 7/16" ring gear bolts with 3/4" heads and left hand threads.

[TJS69]

Also look here: http://www.novaresource.org/axle.htm

7.5's were not around until the mid or late 70's.

[Tom Ashmead]

Thankyou...
It looks like it must be an 8.2.
Thanks again...Tom