How do you replace a differential pinion seal?

This video will show you how to replace the differential pinion seal. The main thing to do is to count the number of turns it takes to remove the nut that fastens the yoke on the pinion bearing. So when you put the nut back on, you will be able to get in the exact position when you removed it. This keeps all the setting the same.

What happens if the pinion seal on a Chevy truck leaks?

If the pinion seal begins to leak, the fluid level can drop enough to damage those internal components and result in an expensive repair. Raise the rear of your Chevy off the ground with a jack and position a set of jack stands under the axle housing. Lower the jack and allow the truck to settle onto the jack stands.

How do you replace a seal on a Chevy truck?

Drive the seal into the bore with a seal driver and hammer than slide the yoke back onto the pinion shaft, making sure the marks you made on the yoke and shaft align. Install the pinion nut and tighten it, seating the yoke on the shaft.

What’s the best way to replace a seal?

Using a small flat screwdriver, bend the outer metal ring of the seal to help loosen it then pry it out of the bore. Pack the cavity behind the seal with lithium grease then install the new seal into the bore.

Is it necessary to replace a leaking pinion seal?

Replacing a leaking pinion is very important in preventing any major repairs. The pinion seal leaking is a good indicator that something needs attention. If replacing your pinion seal is something you would rather leave to a professional, have one of YourMechanicâ€™s certified technicians perform the replacement.

How do you remove a seal from a transmission?

Using a mallet or plastic hammer, strike the end of the driveline away from the flange. Once the driveline is separated from the flange, you can either tie it up and out of the way or remove it completely from the transmission. Note: If you decide to remove the driveline, place a drain pan underneath the end of the transmission.

What is the purpose of a pinion seal?

The pinion seal, also called a pinion shaft, is designed to keep oil in and any water, dirt or debris out. As long as the pinion seal is in place and performing well, the differential will stay in good shape and operate as it is supposed to.

How do you remove a flange from a pinion?

To remove the flange/yoke, you will need to use a puller. Install the puller so that it is secure and will pull the flange/yoke off evenly from the pinion. The driving shaft of the puller needs to be centered as in the image above. The arms of the puller will need a solid square edge to pull on.

What to use to replace rear pinion seal on Ford Explorer?

This was done on a 2002 Ford Explorer 8.8 rear axle, the procedures are applicable to any RBV axle, and most others. Shop towels, rags, ect.

How does the pinion shaft affect the oil seal?

With the pinion shaft being surrounded by the seal, small lips on the seal face the inside of the differential, so any oil that makes it past the oil slinger (a small disc in front of the seal) will only slide up the oil seal, not under it. This causes the oil to return to the differential case instead of flowing between the seal and pinion shaft.

How to remove a seal from a pinion mount?

Part 4 of 8: Removing the pinion seal 1 Set up a drain pan. Place a drain pan underneath the pinion seal area. 2 Remove the seal. Take a seal puller, hook the inside of the seal and pry to remove the seal. 3 Prep the area. After the pinion seal is removed, clean the inside surface of the pinion seal mounts.

How do you replace a pinion seal on a ranger station?

(1) Pinion seal (get an extra one if you’ve never installed a lip seal before, you can always return the extra if you don’t need it) Step 1: Mark the driveshaft’s position in relation to the pinion flange, then remove the driveshaft using the 12mm wrench.

How do you replace a differential pinion seal?