How do you pull a pinion gear?
The pinion gear can be removed from the drive shaft with a large gear puller and a small bearing puller. Place the drive shaft in a vice. Remove the cotter pin from the nut at the pinion end of the drive shaft. Using a 15\16 hex socket, back the nut off about 1/4 of an inch, but do not remove it.
How much is a differential repair?
A typical rear differential repair costs anywhere between $200 and $400. These typical repairs would include your bearing, seals, and fluid changes. Of course, when a gear change is required, that’s when things get pricey. $1,500 is just the minimum you can expect to pay for new gears.
What is a pinion gear in a differential?
The pinion gear is attached to the end of the drive shaft as it enters the differential case. As it turns, its gears cause the ring (crown wheel) gear to rotate. Since their shafts are mounted at a 90-degree angle to each other, this gear set transforms longitudal rotation to transverse rotation.
How do you get pinion bearings out of a differential?
Knock the pinion gear out to the rear with a brass punch taking care not to damage the threads. Keep track of the positions of all of the original shims. Pinion bearings must be pressed off. Carrier bearings can be pulled using a bearing puller. Internal parts (inside the carrier) can be moved as necessary.
What kind of tools do you need for ring and pinion?
Differential tools are necessary for anyone working with ring and pinion setups, whether it is an experienced professional or the DIY enthusiast. Bearing pullers, dial indicators, brass punches, spanner wrenches…all of these specialty tools are required to swap ring and pinion gears and get them set up properly.
What kind of tools do you need for differential gears?
Bearing pullers, dial indicators, brass punches, spanner wrenches…all of these specialty tools are required to swap ring and pinion gears and get them set up properly. There are also differential tools that make the job quicker and easier.
How do you remove a seal from a pinion shaft?
In most cases, continue driving the center shaft until the the flange comes loose and off the pinion shaft. Step 1: Set up a drain pan. Place a drain pan underneath the pinion seal area. Step 2: Remove the seal. Take a seal puller, hook the inside of the seal and pry to remove the seal.
Knock the pinion gear out to the rear with a brass punch taking care not to damage the threads. Keep track of the positions of all of the original shims. Pinion bearings must be pressed off. Carrier bearings can be pulled using a bearing puller. Internal parts (inside the carrier) can be moved as necessary.
In most cases, continue driving the center shaft until the the flange comes loose and off the pinion shaft. Step 1: Set up a drain pan. Place a drain pan underneath the pinion seal area. Step 2: Remove the seal. Take a seal puller, hook the inside of the seal and pry to remove the seal.
What’s the best way to install a differential?
Try using the original shim depth for your first attempt. The rear pinion bearing must be pressed on the pinion shaft and the pinion races must be tapped into the housing with a large punch so that they seat evenly. Install the front bearing and carefully tap the pinion seal in place with an old race.
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.