WJB WS8460N

WJB WS8460N is an outer differential pinion seal. It corresponds to the National 8460N dimensional family used in selected GM 8.875-inch axles with a 12-bolt ring gear.

Application / fitment

The seal is catalogued for selected Buick, Chevrolet, GMC, Oldsmobile and Pontiac cars and light trucks with the matching axle. Selection must be based on axle design, outer position, shaft diameter and housing bore rather than vehicle model or engine alone.

• part type: differential pinion seal
• position: rear differential, outer pinion seal
• selected axles: compatible GM 8.875-inch / 12-bolt versions
• selected makes: Buick, Chevrolet, GMC, Oldsmobile and Pontiac
• cross references: National 8460N, GM 12304975, 2994984, 3817883

Confirm shaft surface diameter, housing bore and flange position before installation. Press the seal squarely with a suitable driver and lubricate the lip with gear oil. Service the pinion nut according to the axle bearing-preload procedure.

Technical information

• shaft diameter: 1.739" / 44.17 mm
• housing bore: 2.812" / 71.42 mm
• flange outside diameter: 3.270" / 83.06 mm
• width: 0.593" / 15.06 mm
• 8460N family lip material: polyacrylate ACM
• design: spring-loaded multi-lip, type 74
• outside design: flanged
• sale unit: 1 seal