1981 GMC Astro Differentials
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- Auburn Gear®Grip-N-Loc™ DifferentialGMC Astro 1981, Grip-N-Loc™ Differential by Auburn Gear®. Auburn Gear’s most advanced limited slip differential, the Grip-N-Loc™, builds upon exclusive technologies found in the previous limited slip line, but is reengineered to...Upgrades vehicles for safe transfer of increased power/torque across the axleCase material is up to 50% stronger than OE cases$608.80 - $655.37
- Spicer®Differential Pinion Gear Thrust WasherGMC Astro 1981, Differential Pinion Gear Thrust Washer by Spicer®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your...High quality at an affordable priceExpertly made from premium materials$1.65
- Spicer®Differential Pinion SealGMC Astro 1981, Differential Pinion Seal by Spicer®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...High quality at an affordable priceExpertly made from premium materials$13.25