Home/2007-11 GT500 Gears and Differential Parts WMS Gear Package for 8.8 Diff, 4.10 Gears, 2010-14 Mustang GT and 2011/12 GT500 $349.99 WMS Gear Package for 8.8 Diff, 3.73 Gears, 2010-14 Mustang GT and 2011/12 GT500 $359.99 WMS Gear Package for 8.8 Diff, 3.55 Gears, 2010-14 Mustang GT and 2011/12 GT500 $399.99 Ratech Solid pinion spacer with shims, Ford 8.8, 9in $20.70 Ratech Differential Rebuild kit, 07-12 GT500, 10-14 Mustang 8.8 $164.85 Ratech pinion setting tool, Ford 8.8" diff $41.75 Proform Diff girdle black, 1987-04 Mustang, 2005-14 Mustang 8.8 $219.99 Motul Gear 300, 75W90 Gear oil, 1L $28.47 Mobil 1 Synthetic Gear Oil 75w90, .95L $21.04 Ford Performance 8.8 diff bearing kit - center bearings, seals and bolts $210.35 Ford Performance Gears for 8.8, 4.10 ratio ring and pinion $269.98 Ford Performance Gears for 8.8, 3.73 ratio ring and pinion $289.00 Ford Performance Gears for 8.8, 3.55 ratio ring and pinion $299.98 Ford Performance Diff girdle, 1987-04 Mustang, 2005-14 Mustang 8.8 $340.67 Ford Performance Axle Bearing and seal kit, 2005-14 Mustang $70.92 Detroit Tru Trac diff, 8.8" 31 spline $857.75