What happens if the pinion gear is too shallow?
If the pinion gear is too shallow, the gear mesh rides high on the ring gear teeth. This can result in a whine when the vehicle is decelerating. The solution is to move the pinion gear closer to the ring gear centerline. There are two ways to set the pinion depth: with a pinion depth gauge and by checking the gear pattern.
How big of a differential do I need for a GM 12 bolt?
Because of the width of the flange where the ring gear mounts, you cannot use differential ratios larger than 2.73:1 in a type 2 assembly without changing the carrier. A larger ring gear will bolt on, but you will not be able to get the proper pinion bearing spacing no matter how many shims you use.
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.
What kind of Shim do you use to install pinion gear?
You should begin by using the stock shim when installing a new pinion gear. Use a caliper micrometer to measure the width of the shims. It doesn’t matter if you use one shim or five, just as long as they are clean and measure to the right spec.
Because of the width of the flange where the ring gear mounts, you cannot use differential ratios larger than 2.73:1 in a type 2 assembly without changing the carrier. A larger ring gear will bolt on, but you will not be able to get the proper pinion bearing spacing no matter how many shims you use.
If the pinion gear is too shallow, the gear mesh rides high on the ring gear teeth. This can result in a whine when the vehicle is decelerating. The solution is to move the pinion gear closer to the ring gear centerline. There are two ways to set the pinion depth: with a pinion depth gauge and by checking the gear pattern.
What is the depth of a pinion bolt?
I have the T&D Pinion depth tool. The Checking distance or pinion depth scribed on my (Richmond Brand) pinion gear is 2.914. I got the depth set at 2.916.
How do you install a pinion shaft on a Chevy?
Following the procedure detailed in Chapter 6, install the pinion with the gear and bearing assembled and loaded into the housing. To set the pinion depth, install a new outer pinion bearing, without a crush sleeve, over the new pinion shaft. Use gear oil to lubricate the original pinion yoke washer. You should also prelube the bearings.