Product Details: Dana Super 30 (186 mm ring gear) and Dana 44 (216 mm ring gear) front axle differential seal (old design and been has replaced by Spicer 2013455) 2.310" OD 1.320" ID Parts Included: (1) differential seal Fits: 2007 - 2018 Jeep Wrangler JK and JKU with the Dana Super 30 front axle 2007 - 2018 Jeep Wrangler JK and JKU Rubicon with the Dana 44 front axle 2007 - 2018 Jeep Wrangler JK and JKU with an Ultimate Dana front axle 2003 - 2006 Jeep Wrangler TJ Rubicon with the Dana 44 front axle Brand: Dana Spicer Part Number: Dana Spicer 54381 Warranty: 6 month warranty and case by case basis. Demand genuine Spicer. Made in the USA and complete with all the components needed for the repair. Dana design, engineering, testing and manufacturing processes all work in conjunction with one another to ensure unparalleled performance that non-genuine parts simply cannot deliver. Housing Bore (In): 2.12 Inside Diameter (In): 1.32 Material: Rubber Oil Seal Included: Y O-Ring Included: N Outside Diameter (In): 2.31 Seal Type: Gasket Shaft Size (In): 1.32 Width (In): 0.80