How do I identify my Chevy rear end?
All Chevrolet rear ends can be identified by comparing the gasket shape to an identification chart similar to the one found on Drivetrain’s differential identification page (see References). A visual chart of different GM/Chevrolet rear ends is found on Ring & Pinion’s differential types web page (see References).
How do you tell if you have a 7.5 or 8.5 rear end?
The 8.5 rearend will have a round cover, and part of the cover will extend rearward to make room for the ring gear. You will also notice the large, flat, cast-in protrusions at the five and seven o’clock positions. These protrusions are larger than those on the 7.5 rearend.
What gear ratio does my Ram truck have?
Start the truck and put it into neutral. Rotate the rear tire 2 times and count the number of times the drive shaft turns. Close to 4 times = 3.92. Close to 3 1/2 = 3.55 Close to 3 = 3.21.
What gear ratio does my RAM have?
Ram has a standard axle ratio of 3.21 on 2X4 trucks and 3.55 on 4X4 trucks and trucks with the diesel engine.
What kind of rear end parts do I Need?
Shop by your differential. Please select a rear end that matches your vehicle below. General Motors has a wide range of front and rear ends! We carry everything from the 7.25″ IFS front end parts, to the large 11.5″ rear end parts for 1-ton trucks.
Where is the factory number on my rear end?
This number is stamped on the right hand side axle tube of your rear end. It’s a number like: 603XX-X, 604XX-X or 605XX-X. With this number, you can tell exactly what components the factory used in the assembly of your rear end.
Where do I find my rear end ratio?
The table below will help you determine what rear end ratio you have by using your RPO code, answering the question: What rear end ratio was in my Chevrolet or GMC vehicle when it left the factory. You can typically find your RPO code on driver side door panel or glove box.