The Sylvan Climb Master 2.0 REINFORCED Pro Locker fits compatible with jeeps that have a Dana 30 Front Axle with 27 Spline. The Sylvan 2.0 Locker has been strength and endurance tested. Truly next level performance! See list of vehicles that our Pro Locker 2.0 with fit. Please know that in some cases vehicles are upgraded with varied differentials, parts are changed from previous drivers or mechanics and with a wide range of compatibility of vehicles overall a small percentage will just not fit. Please know if for any reason your locker will not fit, we will refund you 100% including any shipping. We are dedicated to your satisfaction. 2 year, NO QUESTIONS ASKED WARRANTY. This locker is Compatible with Jeep brand vehicles of Wrangler, Cherokee, Grand Cherokee, and compatible with Jeep in general. 1987-2006 Wrangler TJ & YJ 1972-1983 Compatible with Jeep CJ5 1972-1975 Compatible with Jeep CJ6 1972-1976 Compatible with Jeep CJ7 1984-2001 Cherokee XJ 1993-1998 Grand Cherokee ZJ 1999-2004 Grand Cherokee WJ. NOTE: ONLY D30 differentials of XD-13027 with work with the Sylvan Climb Master. When installed you will find a drastically increased traction level of climbing and 4-wheeling. We are confident you will reach the summit!