Step-by-step Guide To Replacing A Differential Pinion Seal Using Basic Hand Tools Sel Replcement Nti Ooze

Author Dalbo 02 Mar 2026

A faulty seal can lead to oil leaks. Key steps include removing the companion flange, oil seal, front. In this video we show you how to replace a pinion seal on your differential (aka 3rd member)

Eaton Spicer Complete Drive Axle Pinion Seal Install Driver Tools Only Kit

Step-by-step Guide To Replacing A Differential Pinion Seal Using Basic Hand Tools Sel Replcement Nti Ooze

Even though this video was done on a 3rd gen 4runner, the techniques and tips we share would translate. The document provides instructions for overhauling the differential carrier of a vehicle, including disassembly and inspection steps No matter what 4x4 you have, how new it is, or what axles are in it, you’ll eventually end up with a leaky pinion seal

And rightly so, these seals are.

Replacing a pinion seal might sound daunting, conjuring images of differential gears and specialized tools While it's true that differential work can. In this complete guide, we’ll walk you through identifying the exact source of the leak, gathering the right tools and parts, and replacing the most common types of differential seals. Detailed guide to replacing your rear differential seal

Includes crucial steps for setting pinion bearing preload correctly. Located at the front of the differential, where the pinion yoke connects to the driveshaft, the pinion seal prevents lubricating oil from escaping the differential housing. You can expect many years and many miles of dependable use from your differential if it is set up properly and if you use only top quality parts You already have quality parts if you bought a sierra kit.

How to Replace a Differental Pinion Seal - YouTube

Learn how to replace a pinion seal correctly by following essential steps and necessary tools

By accessing or using the channel, you acknowledge and agree to the terms and conditions of this disclaimer If you do not agree with these terms, please refrain from accessing or viewing the channel. Learn the essential precision required to replace a leaking pinion seal and correctly set critical bearing preload. Mark the pinion shaft, nut, and flange in relation to each other to reinstall in the same position

Then remove the pinion nut Use the puller to remove.