1977 GMC K15 Differential Carriers

8.5″ GM standard Open case, 2.73 & up, 28 or 30 spline.

Product Features:

• Standard open carrier case
• Fits GM 8.5″ with 28 or 30 spline axles
• 2.73 and up ratio only
• Does not include spider gears

Yukon replacement standard open carrier case for Dana 44, 3.92 & up, 2-3/8″ tall.

Product Features:

• Standard open carrier case
• Fits Dana Spicer 44 with 30 spline axles
• 3.92 and up ratio only
• Does not include spider gears

Yukon replacement standard open carrier case for Dana 44, 30 spline, 3.73 & down, 2-1/8″ tall.

Product Features:

• Standard open carrier case
• Fits Dana Spicer 44 with 30 spline axles
• 3.73 and down ratio only
• Does not include spider gears

The Yukon Zip Locker is the latest in on-demand traction. Its air-operated design allows you to switch from an open differential to 100% lockup when you need it, giving you the ultimate in driver selectability. The Yukon Zip locker is an air operated locker that provides selectable traction for off road or street use. This unit features 4320 Chrome Moly internals for added strength. Assembled in the USA! compressor sold separately. All Zip Lockers are backed by the best warranty in the business! All Zip Lockers come with a six (6) year warranty, including any collaterally damaged parts and associated labor, up to $2,000, for the first two (2) years.

Product Features:

• Fits Dana Spicer 44 with 30 spline axles
• 3.92 and up ratio only
• Forged case and 8620 internals for added strength
• Works with a variety of air delivery systems
• Assembled in the USA

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

• Fits Dana Spicer 44 with 30 spline axles
• 3.73 and down ratio only
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA

The Yukon Grizzly Locker is the ultimate in locking differentials for street, off-road, & drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly locker is a mechanical locking differential. It features a forged case and 8620 internals for maximum strength. It’s patented design reduces common locker failures. All units assembled in the USA! All Grizzly Lockers are backed by the best warranty in the business! Yukon covers the replacement unit and covers any collaterally damaged parts and associated labor, up to $2,000!

Product Features:

• Fits Dana Spicer 44 with 30 spline axles
• 3.92 and up ratio only
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA

For vehicles that are driven daily, the Powertrax No-Slip Traction System is the latest design in quiet traction-adding differential technology. It combines the automatic street-friendly smooth operation of a limited-slip differential with the traction performance of a locking differential. The Powertrax No-Slip locker easily installs in to your differential carrier using basic tools and without affecting your ring and pinion settings. Powertrax Grip-Lok, Lock-Right Lockers and No-Slip Traction Systems automatically provide 100% traction on-demand, under the toughest circumstances. The Powertrax Grip-Pro and Grip-LS performance limited slips offer smooth dependable torque transfer and traction for the best of both worlds!

Replacement bare case for GM 8.5″ & 8.6″ Yukon Dura Grip. Fits both 28 & 30 spline applications. This carrier case is for a Yukon Dura Grip ONLY. It is NOT a replacement carrier for a stock positraction.

Product Features:

• Dura Grip positraction carrier case
• Does not include spider gears
• Fits GM 8.5″ and 8.6″
• Fits 2.76 and up ratios only

8.5″ GM EXTRA HD standard Open case (uses larger bearings).

Product Features:

• Standard open carrier case
• Fits GM 8.5″ with 28 or 30 spline axles
• 2.73 and up ratio only
• Does not include spider gears
• Has larger carrier carrier bearing journals for high strength

Yukon replacement standard open carrier case for Dana 44, 30 spline, 3.73 & down, bare. This case includes carrier shims, roll pin, ring gear bolts and a cover gasket.

Product Features:

• Standard open carrier case
• Does not include spider gears
• Includes carrier shims, roll pin, ring gear bolts and a cover gasket.
• Fits Dana Spicer 44
• 3.73 and down ratio only

Yukon replacement standard open carrier case for Dana 44, 30 spline, 3.92 & up, bare. This case includes carrier shims, roll pin, ring gear bolts and a cover gasket.

Product Features:

• Standard open carrier case
• Fits Dana Spicer 44 with 30 spline axles
• 3.92 and up ratio only
• Does not include spider gears
• Includes ring gear bolts, carrier shim kit, roll pin and cover gasket

Pro-King is the leading supplier of transmission and driveline products in the aftermarket.

Product Features:

• All products are designed to meet or exceed OE quality, form, fit and funtion.