33-Spline Std. Series Spool - GM 8.5 10-Bolt

This 33-spline Std. Series spool is made for GM 8.5 10-bolt rearends and suits off-road fans as well as street performance builders who want mechanical traction control. It locks the carrier so both rear wheels spin at the same rate, boosting grip under hard acceleration and during turns.

A solid 33-spline design mates directly to the GM 8.5 10-bolt carrier, giving you dependable mechanical lock-up across a range of driving situations. The tooth pattern spreads the load over more surface area, cutting down on wear and handling the stress of hard launches and sharp cornering.

Great for off-road rigs, drag cars, or muscle cars, this spool delivers strong grip on both pavement and dirt. It is made to fit GM 8.5 10-bolt differentials, making it a solid choice for any performance build.