USA Standard Gear GM 12-Bolt Differential Spartan Locker Heavy-Duty Cross Pin Shaft (70-72 Monte Carlo)Find parts that fit my vehicle

Reliable Traction Enhancer. The USA Standard Gear GM 12-Bolt Differential Spartan Locker Heavy-Duty Cross Pin Shaft is engineered to deliver 100% lockup traction in vehicle differentials. It enhances both off-road and on-road performance by ensuring power is effectively distributed to both wheels when needed, making it a crucial upgrade for improved vehicle control and durability.

Durable Construction and Finish. Manufactured to rigorous standards, this cross pin shaft uses heavy-duty materials with precise engineering for maximum strength and longevity. The robust finish resists wear and guarantees dependable operation under demanding conditions, compatible with both Spartan Locker and standard open spider gears.

Installation Ease. Installation is straightforward for those familiar with differential components, requiring no additional drilling or modifications. This makes it suitable for professional mechanics and experienced DIYers seeking a reliable upgrade without added complexity.

Application. Designed specifically for 1970 to 1972 Monte Carlo models equipped with an 8.875 inch, 12 bolt cover differential utilizing a cross pin. This ensures precise compatibility with key performance differentials from that era and model range.

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