Performance spool for Model 20 with 29 spline axles. fits 3.08 and up. Performance spools are made from the highest quality materials to ensure high strength and long life in performance applications. Spools provide 100% power to both tires at all times and are a lower cost alternative to lockers. Spools are not recommended for street driven vehicles. Performance spools come with a one year warranty against manufacturing defects.   

Compatible gear ratios: 3.08 and numerically higher (3.08, 3.54, 3.73, etc.) 

*Must use 1-piece axles