How do you replace a rear differential pinion seal?

A rear differential pinion seal necessitates the removal of the yoke where the driveshaft and diff meet. Remove the seal around the yoke and replace it without damaging the new one. Reassemble and refill the differential oil. The side seals prevent the oil from seeping into the brakes.

Where can I find differential ring and pinion?

You can also find links to our differential ring and pinion by application data that provide a detailed list of differential components for the most popular differentials, the links are listed below the instruction set. Be sure to ask about our speciality fluids for your differential, we also offer pois fluid.

How to do a ring and pinion change?

Step 28: Put the shim or shims from the old pinion onto the new one and butt the old bearing back on (that you have honed out), also put the old crush spacer back on and install back into the housing with the other old bearing, yolk, washer and pinion nut. Only tighten up until there is no slack.

How to do ring and pinion change on Silverado Sierra?

Step 22: Use large pipe wrench and clamp onto yolk where drive shaft came off of and then break the pinion nut loose. The pinion nut was a 1 ¼ on my truck. Step 23: Take nut off and pull off yolk. Both are in the picture. Step 24: Put nut back on and use the sledge hammer to knock the pinion out.

What makes up the rear axle ring and pinion?

This is a typical ring and pinion from the 8.8-inch axle along with bearing, collapsible spacer, and pinion. The ring-and-pinion gear determines the gear ratio of the rear axle assembly, and therefore the gear ratio directly impacts vehicle acceleration and fuel economy.

What should the back lash be for pinion gear?

12. Once the pinion gear is installed, position ring gear and carrier into housing to check backlash. Motive Gear and Motive Gear Performance ring gear and pinions are developed to be run at .008″ to .012″ back-lash for street gear sets.

Can a broken tooth on a pinion gear ruin your differential?

Having teeth affected on a single pinion gear may not ruin your differential completely and if caught in time you might be able to slowly reach a mechanic shop without a platform. If there are more broken teeth on a ring or pinion also, then that’s another deal.

What causes a ring and pinion to whine?

This kind of noise is almost never caused by bad ring and pinion gears. A howl or whine during acceleration over a small or large speed range is usually caused by worn or burned ring and pinion gears or improper gear set up. Rumbling or whirring at speeds over about 20 mph can be caused by worn carrier bearings.

Why does my rear differential make a whirring noise?

Hearing a whirring noise around 10 mph when accelerating or slowing down is likely due to worn or loose pinion bearings. Worn axle shaft splines or chipped gear teeth can lead to a knocking or clicking rear differential noise from the differential.

What kind of wear does a pinion gear have?

Normal Ring and Pinion Wear: The tooth surface on the ring and pinion gears is only moderately shiny. The machining striations on the drive surface of the ring gear teeth are still visible (on the actual gear set, if not in the attached picture). The face or edge of the pinion gear teeth is still squared off.

What causes a ring and pinion set to fail?

This ring and pinion set shows excessive heat failure. Much more of the gear tooth surface has burned off than in the example above. The pinion gear teeth have worn down to a very sharp edge. Again, the cause is lubrication failure.

How does the pinion gear work on a GM differential?

In both units the pinion gear uses a crush sleeve to set the preload on the bearings and removing it requires the installation of a new crush sleeve. So, consider this fair warning. Once the axle shafts have been removed, you can lift the ring gear and carrier out of the center section. Then the carrier disassembly can commence.

Do you have to change bearing when disassembling differential?

Then the carrier disassembly can commence. Although other components do not have to be aligned, you need to keep the inner pinion bearing properly aligned. This bearing is pressed on and removing the bearing instantly changes alignment. Don’t remove the bearing unless you are replacing it.

How does a disassembly of a GM differential work?

Once the axle shafts have been removed, you can lift the ring gear and carrier out of the center section. Then the carrier disassembly can commence. Although other components do not have to be aligned, you need to keep the inner pinion bearing properly aligned. This bearing is pressed on and removing the bearing instantly changes alignment.

How to remove rear axle shafts with locking differential?

On axles WITH a locking differential, keep the pinion shaft partially withdrawn. 16. On axles WITH a locking differential, place the C-lock (1) on the axle shaft (3) so that the ends are flush with the thrust block (2) (Illistation # 8).

How do you change the differential on a Pajero?

1) Raise and support rear axle. Place transmission in Neutral. Apply parking brake. Rotate drive shaft clockwise. Place reference marks on pinion dust cover and differential housing. 2) Rotate drive shaft counterclockwise, and measure distance between reference marks.

How big of a pinion do you need to lock an axle?

• For the 8.6 inch axle, tighten the pinion shaft locking bolt to 36 N·m (27 lb ft). • For the 9.5 inch axle, tighten the pinion shaft locking bolt to 50 N·m (37 lb ft).

What kind of oil does a limited slip differential use?

FLUID TYPE Conventional differentials use SAE 80W or SAE 90W API GL-5. Limited slip differentials use Mitsubishi Gear Oil (8149630 EX), or Mopar Gear Oil (4318058) and Mopar Friction Modifier (4318060). TROUBLE SHOOTING NOTE: See TROUBLE SHOOTING – BASIC PROCEDURES article in the GENERAL TROUBLE SHOOTING section. TESTING & INSPECTION

How do you replace a rear differential pinion seal?