What do you need to know about ring and pinion installation?

During the ring & pinion installation, there are four pr imary adjustments that will need to be made. 1. Pinion Depth ± The distance from the face of the pinion gear to the centerline of the ring gear. This is adjusted by adding or subtracting shims to the inner pinion bearing.

When did Randys start making ring and pinion gears?

RANDYS carries the widest selection of ring and pinion gears sets in the industry, with gears for differentials from 1948 to today’s hottest models. Our two manufactured brands are produced at factories with strict tolerances, and according to our precise engineering specifications.

What do ring and pinion gears do for a car?

Ring and pinion gears for the front and rear end of your vehicle come in a selection of gear ratios that vary how much torque is applied to the wheels of your vehicle. This ratio affects torque, gas mileage, and RPMs.

How to setup without a pinion depth setting tool?

1. Setup Without Pinion Depth Setting Tool In order to obtain the correct set up without a pinion depth set ting tool, the following procedure is suggested: a. Unless other wise instructed, start with the original pinion depth shim.

How to set up ring and pinion gear?

Ring and Pinion Gear Set Up To install your ring and pinion gears and/or differential correctly, it is critical to torque your bolts and set your preload and backlash correctly. The following table contains the proper specifications for all popular axles.

What are the specs for ring and pinion?

Ring and Pinion Gear Set Up Specs – Torque and Backlash Crawlpedia is an off-road encyclopedia featuring a complete list of proper ring and pinion gear set up torque and backlash specs. [ CRAWLpedia ]

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 big is the torque cap on a pinion?

Pinion Preload (Reused) Ring Gear Backlash Ring Gear Bolt Torque Carrier Bearing Cap Bolts Chrysler 7.25″ 12 to 14 in-lbs. 6 to 7 in-lbs. .006″ to .010″ 55 ft-lbs.

How do you install a rear pinion bearing?

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 is the pinion depth of a Dana seal measured?

A setting tool must be used to measure the checking distance. Pinion depth is adjusted by adding or subtracting shim thickness. Stay +/- .002 of the pinion dimension. (See Illustrations ‘A’ and ‘B’). 5.Once the pinion depth is achieved, install a new crush collar (preload shim pack for Dana’s) and seal.

How much torque do you need for pinion gear?

Then loctite the pinion nut and tighten to 15 inch-pounds rotating torque with used bearings or 25 inch-pounds with new bearings. 6.With the pinion gear installed, position ring gear and carrier into housing to check backlash.

When do you replace a pinion bearing cup?

If a 0.038 mm (0.0015-inch) feeler gauge can be inserted between pinion bearing cup and the bottom of its bore at any point around the pinion bearing cup, the pinion bearing cup is not properly seated. Whenever pinion bearing cups are replaced, differential pinion bearings should also be replaced.

Can a feeler gauge be inserted in a pinion bearing cup?

Make sure pinion bearing cups are properly seated in their bores. If a 0.038 mm (0.0015-inch) feeler gauge can be inserted between pinion bearing cup and the bottom of its bore at any point around the pinion bearing cup, the pinion bearing cup is not properly seated.

How is the pinion depth of a ring adjusted?

1. Pinion Depth ± The distance from the face of the pinion gear to the centerline of the ring gear. This is adjusted by adding or subtracting shims to the inner pinion bearing. 2. Pinion Bearing Preload -The preloa d applied to the pinion bearings when the pinion nut is tightened. This is adjusted by shims and/or a crush sleeve. 3.

How to install a rear axle pinion bearing?

STEP 1: Place differential pinion bearing (new, or used if in good condition) over aligning disc and insert into rear axle pinion bearing cup of carrier. Place differential pinion bearing into bearing cap and assemble tool handle into screw and tighten to 2.2 Nm (20 lb-in). Item Part Number Description

How is clearance between ring and pinion gear measured?

This describes the clearance between the ring gear and the pinion gear, and is usually measured in thousandths-of-an-inch by using a dial indicator. For instance, US Gear recommends .008- to .012-inch for street use and .006- to .008-inch for competition use.

How are the pinion bearings adjusted on a rearend?

Just like the side bearings, the pinion bearings are adjusted by adding and removing shims of varying thickness. After the pinion bearing preloads have been set, this is the time that backlash is set. You will be checking the gear mesh pattern with dye or marking compound.

Why do I need to change the gears on my rearend?

If there is too much backlash, the ring gear needs to move closer to the pinion gear. If there is not enough, the ring gear needs to move away from the pinion gear. Just like the side bearings, the pinion bearings are adjusted by adding and removing shims of varying thickness.

How do you check the pinion gear ratio?

Remove the old gear set and thoroughly clean both the ring gear carrier and rear end housing with solvent. After cleaning, air dry all parts and inspect all components for damage. 2. Verify you have purchased the correct gear ratio. This can be checked by dividing ring gear tooth count by the pinion tooth count.

How do you mount a pinion ring on a Ford?

Install the front bearing and carefully tap the pinion seal in place with a properly sized seal driver or an old race. West Coast Differentials notes that Ford 8- and 9-in., and GM 10.5- and 12.25-in. ring gears use a pilot bearing that must be tapped in, with a retainer for the Fords. Mount the ring gear to 30 October 2015

Where are the shims on a ring and pinion?

Pinion depth is controlled by shims. Shims may be located between the Inner pinion bearing & pinion head or they may be between the inner Pinion bearing cone and carrier housing. In either case removing a shim will Move the pinion away from the center line of the ring gear while adding a shim will move it toward the centerline

1. Remove the old gear set and thoroughly clean both the ring gear carrier and rear end housing with solvent. After cleaning, air dry all parts and inspect all components for damage. 2. Verify you have purchased the correct gear ratio. This can be checked by dividing ring gear tooth count by the pinion tooth count.

How to install a new ring and pinion?

1. Clean the new ring and pinion gear set to remove any protective coating and /or packing material. 2. After cleaning, dry all parts with an air supply , making sure to not spin the bearings with compressed air (USE EYE PROTECTION). 3. Inspect the tooth areas of both gears for any small chips that may have occurred during shipping.

How to tell the difference between ring and pinion?

This can be checked by dividing ring gear tooth count by the pinion tooth count. e.g. (Ring gear tooth count 35 T, pinion gear Tooth count 10 T, 35 divided by 10 = 3.50:1. 3. Many differential cases have many thousands of miles of service.

How is the pinion depth of a ring adjustable?

Pinion depth is adjustable by adding or subtracting shim thickness. Stay +/-.002 of the pinion dimension, (see Figure ‘A’ and ‘B’). 11. Once pinion depth is achieved using a new crush collar or preload shim pack set pinion bearing preload to 15 inch-pounds rotating torque with used bearings, and 25 inch pounds with new bearings.

What is the contact pattern of the drive pinion?

The drive pinion depth is correct. Increase the differential ring gear backlash. A contact pattern that is worn in the center of the differential ring gear tooth toward the heel. Tooth contact pattern shown on the drive side of the gear teeth. The low contact pattern indicates that the drive pinion is installed too deep into the carrier.

Is it possible to turn a pinion nut too tight?

In a pinch a pipe wrench will work, but is not recommended. Be careful a quarter turn past optimum is way too tight. You only want 12-20 in. lbs of torque on the free spinning pinion. If you go too tight, the only thing to do is take it apart and crush a new sleeve.

What’s the best way to replace a pinion seal?

Step 1: Apply RTV silicone. Apply a thin layer of RTV silicone on the mating surface of the new seal. The mating surface will in most cases have an orange or green sealing surface. Step 2: Install the new pinion seal. Position the seal according to how it needs to be installed against the axle housing.

What happens if a pinion seal fails on a differential?

As long as the pinion seal is in place and performing well, the differential will stay in good shape and operate as it is supposed to. A failed pinion seal can result in a minor leak where fluid seeps out, or a major leak that can ruin the differential bearings and gears.

What do you need to know about ring and pinion installation?