The USA Standard Steel Spool for Dana 44 with 30-spline axles delivers 100% lockup by replacing the carrier assembly with a one-piece spool. Manufactured from 8620 steel and heat treated for strength, it installs in place of the differential carrier for dedicated off-road or drag racing use. Not recommended for street-driven vehicles, this spool fits Dana Spicer 44 housings for 3.73 and down gear ratios.
USA Standard Steel Spool For Dana 44 w/ 30 Spline Axles / 3.73 & Down