The Spartan Helical LSD's helical-cut worm gears seamlessly funnel torque to the tire with the best grip. Its 10-pinion design is stronger than 6- or 8-pinion units because it has more points of contact to deliver optimal load distribution. Fits Dana 30 front differentials 27 spline 3.73-and-up ratio Forged 8620 steel alloy case and internals for superior durability Recommended gear oil: Non-synthetic 80W-90 GL-5 Use of friction modifiers not recommended Maintenance free, no worry performance Smooth engagement and linear traction Features and Benefits: Fits Dana 30 front differentials 27 spline 3.73-and-up ratio Forged 8620 steel alloy case and internals for superior durability Recommended gear oil: Non-synthetic 80W-90 GL-5 Use of friction modifiers not recommended Maintenance free, no worry performance Smooth engagement and linear traction Details: AAP UDA 4: 60 Grade Type: Performance Application Summary: 1972-1973 Jeep Commando (Front) 1971-1983 Jeep CJ5 (Front) (Drive: 4WD) 1971-1975 Jeep CJ6 (Front) (Drive: 4WD) 1976-1986 Jeep CJ7 (Front) (Drive: 4WD) 1984-2001 Jeep Cherokee (Front) (Drive: 4WD) 1986-1992 Jeep Comanche (Front) (Drive: 4WD) 1993-2003 Jeep Grand Cherokee (Front) (Drive: 4WD) 1984-1993 Jeep Grand Wagoneer (Front) (Drive: 4WD) 2002-2007 Jeep Liberty (Front) (Drive: 4WD) 1981-1986 Jeep Scrambler (Front) (Drive: 4WD) 1971-1973 Jeep Wagoneer (Front) 1987-2023 Jeep Wrangler Sport Sport S Unlimited Sahara Unlimited Sport Unlimited Sport S Unlimited Moab (Front) (Drive: 4WD) 1966-1971 Ford Bronco (Front) 1980-1987 American Motors Eagle (Front) (Drive: 4WD) 1967-1971 International Scout (Front) 1971-1974 International Scout Ii (Front)