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Outer Stub: 32-Spline (direct fit to Super-60 unit bearing)
Designed for off-road performance
The RCV 30 Spline Dana 44 300M Locking Hub Gear Upgrade delivers the best of both worlds—the convenience of lockouts with the strength of a slug
the lockable differential completely locks the differential when activated
Always pair with high quality kingpin bearings and bushings during rebuilds for optimal performance
ARB Ford Sterling 10.25"/10.5" Selectable Air Locker - 35 Spline 1989-gmc-k2500-esi2848966 Outer Stub: 32-Spline (direct fitThe ARB Air Locker Differential for Ford 10. 25" and 10. 5" Sterling rear axles allows drivers to move slower, safer, and with greater control while reducing drivetrain shock, vehicle damage, and environmental impact. With the flip of a switch, the Air Locker instantly locks the differential, preventing internal gears from rotating independently. This forces both axle shafts to turn together, ensuring maximum traction in mud, rocks, snow, and extreme
