Product Details: Spicer ring and pinion 4.88 gear ratio High pinion Thin Requires 4.56 and up carrier Uses a crush sleeve or solid spacer (crush sleeve eliminator) Parts Included: (1) ring and pinion (1) pinion inner pinion bearing (1) pinion outer pinion bearing (1) pinion seal (1) pinion nut (1) pinion washer (1) pinion crush washer (1) pinion depth shim kit (1) carrier bearing shim kit (1) pinion baffle (1) pinion slinger (12) ring gear bolts Fits: High pinion Dana 60 axles Brand: Dana Spicer Part Number: Dana Spicer 708123-4 Warranty: 6 month warranty and case by case basis. Axle Model: DANA 60 Axle Type: Semi Floating And Full Floating Brand: Spicer Carrier Breaks: 4.10 / 4.56 Cover Bolt Quantity: 10 Gear Ratio: 4.88 Include Installation Kit: Y New Or Remanufactured: New On Vehicle Location: FRONT Pinion Gear Included: Y Pinion Gear Tooth Quantity: 8 Pinion Shaft Diameter: 1.625" Pinion Spline Count: 29 Ring Gear Bolt Qty: 12 Ring Gear Bolt Thread In.: 1/2"-20 Ring Gear Diameter (In.): 9.75" Ring Gear Included: Y Ring Gear Rotation: REVERSE Ring Teeth Count: 39 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. 1978 - 1979 Ford F-250 2002 - 2013 Ford F-250 Super Duty 1978 - 1997 Ford F-350 1999 - 2015 Ford F-350 Super Duty 2000 - 2004 Ford F-450 Super Duty 2000 - 2004 Ford F-550 Super Duty