How do I know what rear end GM I have?

How do I know what rear end GM I have?

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 know what kind of differential I have?

The easiest way to tell if you have an open differential is to jack up the car and spin one of the rear tires. If the other wheel spins in the opposite direction, you have an open differential. If it spins in the same direction, you have a limited slip differential, or LSD.

How do I know what Differential I have?

Visual Differential Identification Without an ID tag, differentials are identified by the number of cover bolts, the distinctive shape of the cover, the number of ring gear bolts, and ring gear diameter. They can also be identified by whether the center section is an integral or dropout design.

How do you know what gear ratio you have?

The calculation uses the number of teeth in the ring gear and divides it by the number of teeth in the pinion gear to provide you with a “[result] to 1” ratio. For example, if the pinion gear has 41 teeth, and the ring gear has 11 teeth, the ratio would be calculated as 41/11, which is equal to 3.73 = 3.73:1.

What are the dimensions of a 1989 Chevy Suburban?

Interior Dimensions. All trims available of the 1989 Chevrolet Suburban come with front headroom of 40.50 inches. The rear is 41.10 inches. Front legroom measures 40.80 inches and rear measures 35.50 inches. In the front, the shoulder room is 65.40 inches and in the rear, it is 66.00 inches.

How big is the rear end of a GM Truck?

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.

How are the rear ends of a Chevy named?

Rear ends with measurement designations are named after the diameter of the ring gear, i.e. 7.2 and 8.5 inch. As Chevrolet used many different rear-end models throughout the years, casting codes vary in both location and translation. Information given is for GM-manufactured rear ends.

What are the bolts on a Chevy rear end?

Identify the most common GM rear-end types. According to Year One Tech, the bolt number count is as follows: 10 bolts on GM 10-bolt, 8.25 and Dana 60 rear ends, 12 bolts on the GM 12-bolt rear end and nine bolts on the GM 7.25. Look at the shape of the inspection cover and the gasket.