How do I identify my rear end?

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 I know what rear end my Chevy has?

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 I tell what rear end is in my truck?

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.

How do I identify my Chevy rear axle?

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 my Chevy rear differential?

If the ID tag or stamp is missing or unreadable, differentials can be 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 I know if I have 8.8 or 9.75 rear end?

While the Super 8.8’s cover has a bulge for the ring gear, it’s not anywhere near as pronounced as the 9.75’s. Once you know what to look for, it’s pretty simple to tell the two rear ends apart. You’ll just have to throw on your reading glasses and take a look under your truck to figure out the difference.

How can you tell the difference between a 7.5 and 8.8 rear end?

The top and bottom of the 7.5-inch gasket are straight with rounded sides. The 8.8-inch gasket has flat sides, top and bottom, with rounded corners.

What does a 8.8 rear end look like?

What rear end does my f150 have?

How Do I Find the Axle Ratio and Limited Slip of My Ford Vehicle?
  1. Locate the Safety Compliance Certification Label on the driver’s side front or rear door panel.
  2. Find the word AXLE under the bar code.
  3. Find the two-digit code under AXLE.

What is a 9.75 rear end?

The 9.75″ differential has been historically reserved for Ford F-150s with a relatively high GVWR package or vehicles powered by the 5.4L Modular V-8. While it is often hailed as a light duty version of the Ford F-250/F350s Sterling 10.50″ differential, the Sterling is a heavy duty, full floating axle.

What rear end do I have by VIN?

Identify the VDS section, the fourth through eighth digits of the VIN. This section typically includes information such as the vehicle model, engine size and body type. While not every vehicle manufacturer includes gearbox ratio information in the VDS, this will be where the information is found if it was included.

How do I know if I have a limited slip rear end?

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.

Does F150 have limited slip differential?

Ford F150 Limited Slip

A Limited-Slip Differential works much the same as an open diff; it is intended to keep the wheels moving equally at different vehicle speeds. But the variance arrives during low traction situations.

What VIN number is my rear end gear ratio?

The gear ratio is usually listed in the VIN code located on driver’s door, the glove box, or the ID plate on the dashboard. Count the times a rear wheel goes around for one driveshaft turn: if its 3 1/2 it’s a 3.50:1. Divide the number of teeth on the ring gear by the number of teeth on the pinion gear.

How do I know what rear end gear ratio My VIN 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.

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 figure out my rear end gear ratio?

Turn the wheel TWO revolutions and count the number of driveshaft turns. The number of driveshaft rotations will help you determine your rear axle ratio. For example, if it turned 3 and a half times, it’s a 3.50:1 ratio. If it turned 4 and a quarter times, it’s a 4.25:1 ratio.

What does the 8th digit in a VIN number mean?

Vehicle Description Section

The fourth through eighth digits describe your vehicle’s model, body type, restraint system, transmission type, and engine code. The ninth digit is the check digit, which is used to detect fraudulent VINs.

How do I find out my trucks axle ratio?

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.