How Do I Know What Differential My Truck Has?

How Do I Know What Differential My Truck Has?

Do you know what differential your truck has? It’s a complicated question, but don’t worry. There are simple ways to determine which type of differential your vehicle has. If you have an intact tube stamp and tag number, finding the correct one should be easy. Otherwise, you can call your mechanic or check the vehicle’s manual. Listed below are some common signs that your differential needs replacing. If you find a noise coming from the differential, you’ll have to swap it out.

Your vehicle’s axle tube stamp and VIN can help you identify which differential your vehicle has. To do this, look for an area of the sticker marked “F” on the door. You’ll notice a number of numbers labeled “F” on the sticker. Once you find this number, you’ll know which type of differential you’re dealing with. This information can help you determine whether or not you’re dealing with an OE or aftermarket differential.

If your vehicle has a Dana axle, it will be marked with the manufacturer’s bill of materials number on the cover. The ring gear and axle are different in size, so if you have a car axle, it will not fit in a truck’s housing. The bolt pattern is different, as are the bearings. A Ford 8.8 axle, on the other hand, has a 10-bolt metal or plastic cover. The cover measures 101/2 inches high by 11 inches long. The axle’s pinion shaft is 15/8 inches long with 30 splines.

Defintion: What is a differential?

The duty of the rear differential is simple, yet it is an essential one. The engine’s power is transferred to the wheels through this component, which sits in between the gearbox and the rear axle.

What’s the difference between the two?

The diameter of the ring gear may be used to determine the kind of differential you have. The face of the gear is used to measure the ring gear’s diameter. Measure the diameter of the ring gear using a tape measure. In this case, the ring gear and carrier must be removed from the housing.

In my vehicle, what kind of differential do I have?

The Dana stamped bill of materials number might help you identify the specific axle you have. Typically, this number may be located on the righthand side or on the longer axletube on the side of the tube facing the back of a vehicle.

What’s the best way to know whether I have a 10 bolt rear end?

The form of the housing and the space between the lower bolts on the cover are the most obvious indicators of an 8.2-inch rearend. With a smooth, circular lower-case region and an 11-inch cover that has a diagonal bulge at the top, the 8.2-inch 10-bolt is ideal for those looking for a case with a more traditional look.

How can I determine the gear ratio of my vehicle without having to remove the vehicle’s cover?

Because of this, checking the tag connected to the differential cover via the cover bolts is a simple method of finding your gear ratio. The factory axle ratio may be found by looking for a figure like 3.54 or 3.73 on the tag.

Is the VIN number a gear ratio indicator?

Every aspect of life. Finding the gear ratio from a VIN number may help you understand why we have our doubts about its potential. The gearbox ratio will be included in the VIN’s Vehicle Descriptor Section (VDS) if the manufacturer specifies it.

What is the VIN number of my rear end?

The VIN’s fourth through eighth digits are designated as the VDS section. Details on the vehicle model, engine size, and body style are often included in this section. Despite the fact that not all car manufacturers provide gearbox ratio information in the VDS, it will always be available here if it is.

To identify a 12-bolt rear axle, how do you know?

The 12 bolts securing the rear cover to the axle housing are the most evident sign of a 12-bolt rearend. An oval cover measuring 10-15/16 inches wide by 10-5/8 inches tall protects the pinion shaft, which has a diameter of 1-5/8 inch.

If your back end has 10 or 12 bolts, how do you know which one you have?

The axle tube on the passenger’s side should have stamped numbers similar to a 10-bolt rearend. You should be able to deduce from the serial numbers whether or not the carrier is Positraction and what gear ratio it has come from the manufacturer with (see charts).

What is the difference between an 8.8 and a 9.75 rear end?

When glancing at the cover from the front, two semi-circular divots can be noticed on the top and lower corners of the passenger side. A bulge for the ring gear is present on the Super 8.8, although it is not as noticeable as on the 9.75.

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