GMC 3500 Differential & Rear-End Components Transmission & Drivetrain

OER Differential Vents

OER rear axle/transmission ventilators are reproductions of the original equipment used by GM on a multitude of applications from the 1950s through today. These differential vents can be utilized for rear axle housing, automatic transmissions, the front transfer case of 4x4 models, and fuel tank evaporator canisters that have a 3/8 in. hole for a ventilator.

4.05 out of 5 stars ( 22 )

$11.99

Hurst Limited-Slip Differentials

Are you struggling for traction, or just have some terrible noise coming from the GM 12-bolt in your truck? Hurst limited-slip differentials offer great traction and strength but are not overly aggressive for the street. These differentials are 4-spring, composite, clutch-style, limited-slip carriers with internal gears machined from forged 4320 steel and stronger teeth. Get rid of that old open differential and upgrade to a limited-slip unit from Hurst. Choose the best gear ratio for your truck. Key features: * Fits 12T GM with 30-spline axles * Composite clutches for great drivability * 4320 chromoly spider gears for ultimate durability * Gears are cut to provide the strongest teeth possible in any terrain

4.5 out of 5 stars ( 2 )

$665.95

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$699.95

Ratech Complete Ring and Pinion Installation Kits

Ratech has just what you need for the fast installation of your ring and pinion gears and to keep you on budget. Get the key components to get the job done with Ratech ring and pinion installation kits.

4.13 out of 5 stars ( 193 )

$144.99

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$159.99

Hurst Axle Conversion Kits

Early GM trucks all came with 6-lug axles. Not only does this limit your wheel choices, but it restricts your options on brakes as well. Hurst axle conversion kits offer a solution. The axles in these 5-lug conversions are made from 1541H alloy for supreme strength and durability. The kits are designed for the 8.875 12-bolt rear-end with the axles featuring 30 spline ends, a 5 x 5 in. lug pattern, and have a 30 3/4 in. length. Choose the kit for your year truck and always look to Hurst Engineering for your truck axle needs. Features: * Complete kit makes installation a breeze * Heat-treated, high-quality 1541H alloy for strength and durability * 30 Spline and 30 3/4 in. long for a direct replacement * 5 x 5 in. lug pattern * Fits 8.875 in. GM truck 12-bolt

5.0 out of 5 stars ( 1 )

$499.95

Hurst Ring and Pinion Sets

Everyone has different needs for their truck. One of the most dramatic changes you can make to a vehicle are the rear ring and pinion gears. Whether you are going for aggressive low-end response for performance and towing, looking to make your truck a highway cruiser, or you've made a change to your wheel and tire size, Hurst ring and pinion sets are available to assist with the transformation. They offer gear sets ranging from 3.08 to 4.56 for the GM 12-bolt rear ends to get you exactly where you need to be. Hurst sets feature high-grade steel for strength and durability along with a gear tooth finish that reduces friction and heat for longevity.

Not Yet Reviewed

$340.95

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$399.95

Hurst Axle Conversions With Limited Slip Differentials

Early GM trucks all came with 6-lug axles. Not only does this limit your wheel choices, but it restricts your options on brakes as well. Hurst axle conversion kits offer a solution. The axles in these 5-lug conversions are made from 1541H alloy for supreme strength and durability. The kits are designed for the 8.875 12-bolt rear-end with the axles featuring 30 spline ends, a 5 x 5 in. lug pattern, and have a 30 3/4 in. length. Choose the kit for your year truck and always look to Hurst Engineering for your truck axle needs. Features: * Complete kit includes limited slip differential making installation a breeze * Heat-treated, high-quality 1541H alloy for strength and durability * 30 Spline and 30 3/4 in. long for a direct replacement * 5 x 5 in. lug pattern * Fits 8.875 in. GM truck 12-bolt * Kits include axles, limited slip differential, and drum brake assemblies

Not Yet Reviewed

$1,177.95

Hurst Master Overhaul Ring and Pinion Installation Kits

Service your axles with Hurst Master overhaul ring and pinion installation kits. These comprehensive kits provide all the necessary parts to properly do the job, including Timken bearings and high-quality seals for a worry-free installation. When refurbishing your worn rear axle or when replacing a carrier or ring gear, treat your axles to Hurst Master overhaul kits. Kits include: * Carrier bearings * Pinion bearings * Pinion seal * Shim kit * Crush sleeve * Pinion nut * Ring gear bolts * Thread locker * Gear marking compound * Rear cover gasket

Not Yet Reviewed

$213.95

National Bearing Differential Bearings

Make sure that the job is done right with National Bearing differential carrier bearings. You can trust National Bearing to supply you with bearings manufactured with technology-driven processes to the most stringent of thresholds and manufacturing tolerances. Look to National Bearing's differential bearings to provide you with the confidence that you need when completing your ring and pinion installations.

3.67 out of 5 stars ( 6 )

$26.99

Hurst Conversion Axles

Early GM trucks all came with 6-lug axles. Not only does this limit your wheel choices, but it restricts your options on brakes as well. Hurst conversion axles offer a solution. These 5-lug conversion axles are made from 1541H alloy for supreme strength and durability. The kits are designed for the 8.875 12-bolt rear-end with the axles featuring 30 spline ends, a 5 x 5 in. lug pattern, and have a 30 3/4 in. length. Choose the kit for your year truck and always look to Hurst Engineering for your truck axle needs. Features: * Heat-treated, high-quality 1541H alloy for strength and durability * 30 Spline and 30 3/4 in. long for a direct replacement * 5 x 5 in. lug pattern * Fits 8.875 in. GM truck 12-bolt

Not Yet Reviewed

$357.95