How do I identify my GM rear differential?
How do I identify my GM rear differential?
Information about Differentials in GM vehicles can usually be obtained by looking at the RPO or “Regular Production Option” codes contained in the Service Parts Identification tag in the glovebox. Whenever possible, reference the tag numbers when ordering parts for your Differential.
How do I find the axle ratio on my Silverado?
Method 1: Count the number of teeth on the ring gear and the pinion. Divide the number of the ring gear’s teeth by the number of the pinion’s teeth. This will give you the axle ratio.
How do you find the gear ratio on a Chevy rear end?
Count the teeth on the small gear in the forward part of the axle housing, called the pinion gear. Count the number of the teeth in the big ring gear attached to the differential. Divide the number of teeth on the pinion into the number of teeth on the ring gear. This is the gear ratio.
How do I find my rear end gear ratio GMC?
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.
What is the diameter of a GM rear end differential?
General Motors rear end differentials are referred to by the diameter of the ring gear, i.e. 7.5 inch, 8.5 inch, 10.5 inch. Our experts will help you find the correct ring and pinion set for your particular application.
Where is the rear differential code on a full size Chevy?
Using the charts below, you will be able to learn alot about the rear differential in your classic full size Chevy. The gear ratio codes are located on the front passenger side of the differential as shown in the illustration below. This code will tell you the ratio, whether it is posi or not, any special notes and what plant it was made at.
How do I know what size my Chevy rearend is?
7.5-Inch Although the 7.5-inch 10-bolt closely resembles the 8.5-inch housing, you can positively identify the Chevy 7.5-inch rearend by measuring it. The oval-shaped cover measures 8 5/16 inches by 10 9/16 inches. The distance between the bottom center bolt in the cover and its adjacent bolts is 3 1/4 inches.
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