Spicer Power-Lok Limited-Slip Differential Clutch Pack Rebuild Kit for Dana 70 Rear Axle (Dodge & Ford)

Eliminate frustrating rear-end single-wheel slipping, correct aggressive differential chatter, and fully restore tire-gripping performance with this genuine Spicer Power-Lok Clutch Kit. Specifically packaged as a comprehensive internal restoration solution for heavy-duty Dana 70 rear axles equipped with a factory Power-Lok limited-slip differential (LSD), this master hardware package replaces worn friction discs and steel plates to bring your traction limits back to 100% factory spec.

Unlike standard limited-slip differentials like the Trac-Lok, the high-performance Dana Power-Lok is a heavy-duty, torque-sensitive design. It utilizes an internal cross-shaft ramp configuration that aggressively wedges the carrier internals together, clamping down on the clutch stacks harder as engine torque increases. Because this assembly handles massive torsional loads—especially behind diesel and big-block gas engines in dual-rear-wheel (dually) utility trucks—the internal friction plates naturally lose their surface scoring, smooth out, or break their engagement tabs over high mileage. When this wear occurs, the vehicle loses its dual-wheel drive capability, leaving you stuck with a "one-wheel peel" on slick boat ramps, icy highways, or soft construction sites. Degraded or warped plates will also introduce severe popping and grinding noises during low-speed cornering.

This original equipment manufacturer (OEM) restoration package includes a complete, factory-sequenced array of premium multi-lip friction discs and precision-ground steel plates to fully rebuild your Power-Lok carrier. Sourcing a genuine Spicer component ensures exact original equipment stack thickness, correct splined tab engagement depths, and highly durable friction scoring engineered to work flawlessly with your vehicle’s factory axle shafts and gear oil chemistry.

Installation Note: For optimal performance, maximum friction life, and completely quiet operation, always pre-soak the new friction discs in premium limited-slip gear oil additive (friction modifier) for at least 20–30 minutes prior to internal carrier assembly.

Kit Contents:

• Complete Stack of Premium Power-Lok Friction Discs (Inner Splined)

• Complete Stack of High-Tensile Steel Plates (Outer Tabbed & Domed Belville Style)

Kit Highlights:

• Engineered Strictly for Power-Lok Units: Features the exact dimensionally specific flat and domed plate sequences required to function with the Power-Lok’s unique internal pressure rings and ramped cross-shaft pin setup.

• Genuine Spicer OEM Quality: Formulated by the premier original equipment drivetrain supplier to match exact factory thickness tolerances and structural steel tempering limits.

• Cures Turning Chatter & Popping: Replaces warped plates or stripped friction discs to eliminate binding, popping, and groaning noises during low-speed cornering maneuvers.

• Heavy-Duty Friction Compounds: Utilizes advanced, high-coefficient wear materials designed to withstand immense torsional heat build-up from commercial hauling, dual-wheel configurations, and heavy towing leverage.

Vehicle & Axle Fitment:

• Axle Profile: Solid Monobeam Rear Dana 70, 70HD, and 70U Axles factory-equipped with a 4-ramp Power-Lok limited-slip differential center carrier. Does not fit standard open differentials or standard Trac-Lok assemblies.

• Dodge Ram Trucks: Classic 1989–1993 Dodge Ram D250/W250 and D350/W350 Cummins Turbo Diesel trucks, as well as 1994–2002 Dodge Ram 2500 and 3500 heavy-duty pickups running Dana 70 rear housings.

• Ford Trucks: 1970s to early 2000s Ford F-350 dual-rear-wheel (DRW) trucks and commercial Econoline E-350 / E-450 dually vans utilizing the Dana 70 rear platform.

• Position: Rear Differential Center Housing Pumpkin — Internal Carrier Assembly