What is the rear pinion seal?
What is the rear pinion seal?
In vehicles that have the rear wheels as drive wheels, drive shafts, differentials, and transfer cases are used to transmit power from the engine and transmission to the wheels. Each pinion shaft will have a pinion seal, which is used to ensure that fluid does not leak out of the differential past the pinion shaft.
Where is the pinion seal on a car?
The pinion seal is located inside differentials of vehicles. 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,…
When do you need a pinion seal on a differential?
A pinion seal is located in the differential and prevents fluid leaking out past the pinion shaft. You may need a new pinion seal if you hear a whining noise while driving, or if you notice leaks or low fluid in your differential.
What happens when a pinion seal goes bad?
A failing pinion seal will leak which can ruin the differential. 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.
How to replace the seal on a pinion nut?
1 ⅜ Ratchet 2 ⅜ Socket set – Metric and Standard 3 ½ Ratchet – at least a 18 inches long for leverage 4 ½ Breaker bar – 24 inch 5 ½ Socket set – Metric and Standard 6 ½ socket for pinion nut – this will need to be determined when disassembling 7 Ball peen hammer 8 Brake cleaner 9 Drain pan 10 Gear oil
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.
