Why do I need to replace my pinion seal?
Average rating from 31 customers who received a Pinion Seal Replacement. 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.
Where is the pinion seal on a four wheel drive vehicle?
The pinion seal is located near the pinion shaft and is designed so that fluid does not leak out of the differential. Some vehicles have a rear pinion seal, where others have both a front and rear pinion seal, it just depends on the make and model of your vehicle and if the vehicle has rear or four wheel drive.
What are the symptoms of a bad pinion seal?
Over time, the rubber on the pinion seal wears down and the seal will not be effective as it was before. Each time your vehicle is serviced, the pinion seal should be inspected to ensure there are no symptoms of a bad or failing pinion seal. 1. Leaking pinion seal One of the biggest signs your pinion seal is failing is it is leaking.
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.
How do you replace front pinion seal?
Slide the pinion yoke off the pinion shaft and set it aside. 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.
How serious is a pinion seal leak?
There are two problems to consider with a pinion seal leak. First, obviously you are losing fluid from the diffential. With reduced capacity of differential fluid, your ring and pinion gears lose cooling and lubrication, which will cause the gears and bearings to overheat and can catastrophicly fail.
What causes a pinion seal to leak?
The pinion seal leak probably came from dirt or crud getting in there which puts gouges in the collar of the yoke. Those gouges allow oil to leak around the pinion seal. You can put a sleeve on the collar.
What is pinion seal?
A pinion seal is a component within your car differential that is meant to keep the differential fluid from leaking out of your car. The pinion seal is found near the pinion shaft, just between the differential pinion gear and the pinion shaft flange.