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9 40 Spl Steel Spool (2.25 Jrnl) Fits 3.812 Dropout; Full Spool; Ford 9 in.; 40 Spline; Steel Spool; 2.25 in. Jurnel; Fits 3.812 in. Dropout;

Yukon Grizzly Locker for Dana 60, 4.56 & up, 40 spline; The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.

Precision Differential Carrier maintains correct power distribution to all drive; This Differential Carrier is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

Precision Differential Carrier Drop In Locker maintains correct power distributi; This Differential Carrier Drop In Locker is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

9 40 Spline Lightened Full Spool; Full Spool; Ford 9 in.; 40 Spline; Lightened;

Yukon Grizzly Locker, Ford 10.25" & 10.5" with 35 splines.; The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.

Precision Differential Mini Spool maintains correct power distribution to all dr; This Differential Mini Spool is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

Precision Differential Carrier Drop In Locker maintains correct power distributi; This Differential Carrier Drop In Locker is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

8.875, 12 Bolt, 12P, 30 Spline, 4 Series, Full Spool; Full Spool; GM 8.875 in.; 12 Bolt; 12P; 30 Spline; 4 Series;

Yukon Grizzly Locker for Ford 8" with 28 spline axles; The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100% power to both tires, while still allowing for disengagement while negotiating turns.

Precision Differential Carrier Drop In Locker maintains correct power distributi; This Differential Carrier Drop In Locker is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.

8.875 12 Bolt 12P 33 Spline 4 Series Full Spool