Mercury Differential Carriers

Yukon replacement standard open carrier case for Dana 30, 3.73 & up, 1.943″ tall. If purchasing this case for a D30 JK front, you will need to also purchase spider gear set YPKD30-S-27.

Product Features:

• Standard open carrier case
• Fits Dana Spicer 30
• 3.73 and up ratio only
• Does not include spider gears

8.8″ 31 spline standard Open case (7/8 X-PIN HOLE).

Product Features:

• Standard open carrier case
• Fits Ford 8.8″ with 31 spline axles
• Does not include spider gears
• 0.875″ cross pin shaft diameter

Product Features:

• Standard open carrier case and spiders
• Fits Ford 8.8″ with 31 spline axles

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 30 with 27 spline axles
• 3.73 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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. This is a race unit designed for extreme off road use or racing. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 35 spline axles and loadbolt housing
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA
• Aggressive design for racing applications only

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. This unit requires the use of a 3.250″ dropout. Use carrier bearing/race numbers LM104949/LM104911. The Yukon Grizzly locker uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. This is a race unit designed for extreme off road use or racing. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 31 spline axles
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA
• Aggressive design for racing applications only

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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. This is a race unit designed for extreme off road use or racing. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 35 spline axles
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA
• Aggressive design for racing applications only

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 Ford 8.8″ with 31 spline axles
• 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! This unit has been machined for use in dropouts with a load-bolt. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 35 spline axles and loadbolt housing
• 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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 31 spline axles and loadbolt housing
• 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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 28 spline axles
• 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 35 spline axles
• 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 uses 8620 internals and a patented design to provide maximum strength and reduce common failures. Assembled in the USA! This unit has been approved for competition in NASCAR National & Touring series. 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! This locker also fits 9.5″ & 10″ dropouts.

Product Features:

• Fits Ford 9″ with 31 spline axles
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• Assembled in the USA

Yukon Trac Loc positraction, Ford 8.8″, 31 spline, with Carbon Fiber clutches.

Product Features:

• Trac Loc positraction carrier case
• Includes spider gears
• Fits Ford 8.8″ with 31 spline axles
• Carbon fiber clutches

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!

Product Features:

• Dura Grip positraction carrier case
• Does not include spider gears
• Fits Ford 8.8″ with 31 spline axles

8″ TracLoc case, bare, 2 or 4 PIN, 4 TAB clutch design.

Product Features:

• Trac Loc positraction carrier case
• Does not include spider gears
• Fits Ford 8″

8.8″ 28 spline standard Open bare case (incl REVERSE) 3/4″ cross pin Hole.

Product Features:

• Standard open carrier case
• Does not include spider gears
• Fits Ford 8.8″ with 28 spline axles
• 3/4″ cross pin bore

9″ TracLoc case, bare, 28 & 31 spline, 2or4 PIN, 4 TAB clutches.

Product Features:

• Trac Loc positraction carrier case
• Does not include spider gears
• Fits Ford 9″ with 28 or 31 spline axles

9″ standard Open case, bare, 28 & 31 spline, 2 or 4 pinion.

Product Features:

• Standard open carrier case
• Fits Ford 9″ with 28 or 31 spline axles
• Does not include spider gears

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.

Motive Gear offers some of the toughest drive train components on the market today. If you are looking for the largest line of performance ring and pinion gear options available with gear sets in a wide range of ratios for nearly every application, both o