1979-1995 Toyota 4Runner / Pickup Yukon Gear & Axle USA Standard Spool For 4 Cylinder FST8-30

Installing a quality USA Standard Gear spool is a cost-effective way to get 100% lockup. Installation is easy as they install in place of your differential carrier assembly. Each USA Standard Gear spool is made from high-quality 8620 steel and heat treated for additional strength. A spool is an outstanding choice for dedicated off-road and drag racing vehicles only.