The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.
How do I identify a Camaro rear end?
The rear axle identification code consists of a two letter prefix indicating the gear ratio, four digits indicating the assembly date as month/day, and a single letter suffix indicating the manufacturing location. A shift number (1 or 2) along with a letter for the Positraction manufacturer (when applicable).
How do I identify my GM rear axle?
Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.
How can you tell the difference between an 8.2 and 8.5 rear end?
Another way to tell the difference between an 8.2 and an 8.5 rearend is to pull the cover and look at the bolt holding the spider gear crosspin. If it takes a 1/2-inch wrench to remove it, it’s an 8.2. If it takes a 5/16-inch wrench to remove it, it’s an 8.5.
How do you tell if I have a 8.2 or 8.5 rear end?
How can I tell what gear ratio I have without pulling cover?
So an easy way to determine your actual gear ratio is to check the tag attached to the differential cover by the cover bolts. On the tag there should be some numbering such as 3.54 or 3.73, either of those numbers will give you the stock axle ratio.
How do I identify my 8.5 gm rear end?
How do I identify my Camaro rear axle?
Camaro Rear Axle Identification & Decoding Identify the gear ratio, the build date, the plant where it was assembled the work shift when it was assembled, and positraction source – if equipped. This number is stamped on the forward facing passenger side axle tube (on 2nd generation) and forward facing drivers side axle tube (on 3rd gen) camaros.
Will a 1970 12 bolt rear differential fit into a Camaro?
The 1970 12 bolt version will bolt into any second generation Camaro and quite often is done so in high power applications. Description – Three piece housing includes integral cast iron differential carrier and housing with pressed in and welded steel tubes.
What is the difference between a 1970 and 1971 Camaro rear end?
The 1970 rear end differs from the 1971-1981 rear end. In 1971, GM instituted a standardized “corporate” rear axle. rear end was available in a 10 bolt version only. The 1970 12 bolt version will bolt into any second generation Camaro and quite often is done so in high power applications.
How do you identify a GM rear differential?
The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.
