1999-2004 Ford Mustang Gears

Quality and performance go hand in hand with gears and gear accessories from AmericanMuscle. We have top shelf gears to fit 7.5 and 8.8 rear ends on 1999 - 2004 Ponys. Choose from brand name suppliers like Motive and Ford Racing gears. Plus, you can also pick up an assortment of gear accessories, like the ...... READ MORE

Staff Picks

1999-2004 Mustang GT Gears

Motive Performance Plus 3.73 Gears (99-04 GT) - Motive Gears F888373
Motive Performance Plus 3.90 Gears (99-04 GT) - Motive Gears F888390
Motive Performance Plus 4.10 Gears (99-04 GT) - Motive Gears F888410
Motive Performance Plus 4.30 Gears (99-04 GT) - Motive Gears F888430
Motive Performance Plus 4.56 Gears (99-04 GT) - Motive Gears F888456
Ford Racing 3.55 Gears (99-04 GT) - Ford Racing M-4209-G355A
Ford Racing 3.73 Gears (99-04 GT) - Ford Racing M-4209-F373N
Ford Racing 4.10 Gears (99-04 GT) - Ford Racing M-4209-G410A
USA Standard 3.55 Gears (99-04 GT) - Yukon Gear ZG F8.8-355
USA Standard 3.73 Gears (99-04 GT) - Yukon Gear ZG F8.8-373
USA Standard 3.90 Gears (99-04 GT) - Yukon Gear ZG F8.8-390
USA Standard 4.10 Gears (99-04 GT) - Yukon Gear ZG F8.8-410
USA Standard 4.56 Gears (99-04 GT) - Yukon Gear ZG F8.8-456
Excel by Richmond 3.55 Gears (99-04 GT) - Richmond F88355
Ford Racing 3.73 Gears and Bama Tuner (96-04 GT) - Motive Gears||Ford Racing||SCT||Bama Custom Tuning||Royal Purple 21201||R8.8RMK||24001||M-4209-88373||38018||3015||38052||45003||01300
Ford Racing 4.10 Gears and Bama Tuner (96-04 GT) - Motive Gears||Ford Racing||SCT||Bama Custom Tuning||Royal Purple 21201||R8.8RMK||24002||M-4209-88410||38018||3015||38052||45003||01300
Speed Sensor Connector (79-04 All) - Pony Enterprises 1074
Ford Racing Speedometer Recalibration Tool (94-10 All) - Ford Racing M-4209ADPT-A
Ford Racing Ring & Pinion Installation Kit - 8.8in Solid Rear (86-04 V8) - Ford Racing M-4210-C
Rear End Installation and Bearing Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears R8.8RMK
Rear End Installation Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears F8.8IK
Ford Racing Traction - LOK Rebuild Kit w/ Carbon Discs - 8.8in (86-12 V8; 11-13 V6) - Ford Racing M-4700-C
Royal Purple Max Gear 75w140 Gear Oil - Royal Purple 1301
Royal Purple Max Gear 75w90 Gear Oil - Royal Purple 1300
Chrome Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Chrome Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6) - Ford Racing M-4033-G2
Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing 8.8in Rear Axle Bearing & Seal Kit (86-04 Excludes IRS) - Ford Racing M-1225-B
Ford Racing Traction - LOK Limited Slip Differential w/ Carbon Discs - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-F318C
Ford Racing T-2 Torsen Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31
Ford Racing FR500S Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31H
Eaton Limited Slip Differential -  31 Spline 8.8in (86-13 V8; 11-13 V6) - Eaton 19588-1
Auburn Pro Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542054
Auburn HP Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542025
Auburn Ected Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 545002
Auburn HP Series Limit Slip Differential - 28 Spline 7.5in (79-85 V8; 86-10 V6) - Auburn Gear 542023
Yukon Gear Duragrip Posi Rear Differential - 28 Spline 8.8in (86-04 V8) - Yukon Gear YDGF8.8-28-1
Yukon Gear Duragrip Posi Rear Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Yukon Gear YDGF8.8-31-1

1999-2004 Mustang Cobra Gears

Motive Performance Plus 3.73 Gears (99-04 GT) - Motive Gears F888373
Motive Performance Plus 3.90 Gears (99-04 GT) - Motive Gears F888390
Motive Performance Plus 4.10 Gears (99-04 GT) - Motive Gears F888410
Motive Performance Plus 4.30 Gears (99-04 GT) - Motive Gears F888430
Motive Performance Plus 4.56 Gears (99-04 GT) - Motive Gears F888456
Ford Racing 3.55 Gears (99-04 GT) - Ford Racing M-4209-G355A
Ford Racing 3.73 Gears (99-04 GT) - Ford Racing M-4209-F373N
Ford Racing 4.10 Gears (99-04 GT) - Ford Racing M-4209-G410A
USA Standard 3.55 Gears (99-04 GT) - Yukon Gear ZG F8.8-355
USA Standard 3.73 Gears (99-04 GT) - Yukon Gear ZG F8.8-373
USA Standard 3.90 Gears (99-04 GT) - Yukon Gear ZG F8.8-390
USA Standard 4.10 Gears (99-04 GT) - Yukon Gear ZG F8.8-410
USA Standard 4.56 Gears (99-04 GT) - Yukon Gear ZG F8.8-456
Excel by Richmond 3.55 Gears (99-04 GT) - Richmond F88355
Speed Sensor Connector (79-04 All) - Pony Enterprises 1074
Ford Racing Speedometer Recalibration Tool (94-10 All) - Ford Racing M-4209ADPT-A
Ford Racing Ring & Pinion Installation Kit - 8.8in Solid Rear (86-04 V8) - Ford Racing M-4210-C
Ford Racing Ring & Pinion Installation Kit  - 8.8in IRS (99-04 Cobra) - Ford Racing M-4210-B
Rear End Installation and Bearing Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears R8.8RMK
Rear End Installation Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears F8.8IK
Ford Racing Traction - LOK Rebuild Kit w/ Carbon Discs - 8.8in (86-12 V8; 11-13 V6) - Ford Racing M-4700-C
Royal Purple Max Gear 75w140 Gear Oil - Royal Purple 1301
Royal Purple Max Gear 75w90 Gear Oil - Royal Purple 1300
Steeda IRS Differential Cover Brace (99-04 Cobra) - Steeda 555-8118
IRS Differential Cover - 8.8in (99-04 Cobra)
Chrome Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing Traction - LOK Limited Slip Differential w/ Carbon Discs - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-F318C
Ford Racing T-2 Torsen Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31
Ford Racing FR500S Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31H
Eaton Limited Slip Differential -  31 Spline 8.8in (86-13 V8; 11-13 V6) - Eaton 19588-1
Auburn Pro Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542054
Auburn HP Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542025
Auburn Ected Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 545002
Yukon Gear Duragrip Posi Rear Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Yukon Gear YDGF8.8-31-1

1999-2004 Mustang Mach 1 Gears

Motive Performance Plus 3.73 Gears (99-04 GT) - Motive Gears F888373
Motive Performance Plus 3.90 Gears (99-04 GT) - Motive Gears F888390
Motive Performance Plus 4.10 Gears (99-04 GT) - Motive Gears F888410
Motive Performance Plus 4.30 Gears (99-04 GT) - Motive Gears F888430
Motive Performance Plus 4.56 Gears (99-04 GT) - Motive Gears F888456
Ford Racing 3.55 Gears (99-04 GT) - Ford Racing M-4209-G355A
Ford Racing 3.73 Gears (99-04 GT) - Ford Racing M-4209-F373N
Ford Racing 4.10 Gears (99-04 GT) - Ford Racing M-4209-G410A
USA Standard 3.55 Gears (99-04 GT) - Yukon Gear ZG F8.8-355
USA Standard 3.73 Gears (99-04 GT) - Yukon Gear ZG F8.8-373
USA Standard 3.90 Gears (99-04 GT) - Yukon Gear ZG F8.8-390
USA Standard 4.10 Gears (99-04 GT) - Yukon Gear ZG F8.8-410
USA Standard 4.56 Gears (99-04 GT) - Yukon Gear ZG F8.8-456
Excel by Richmond 3.55 Gears (99-04 GT) - Richmond F88355
Speed Sensor Connector (79-04 All) - Pony Enterprises 1074
Ford Racing Speedometer Recalibration Tool (94-10 All) - Ford Racing M-4209ADPT-A
Ford Racing Ring & Pinion Installation Kit - 8.8in Solid Rear (86-04 V8) - Ford Racing M-4210-C
Rear End Installation and Bearing Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears R8.8RMK
Rear End Installation Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears F8.8IK
Ford Racing Traction - LOK Rebuild Kit w/ Carbon Discs - 8.8in (86-12 V8; 11-13 V6) - Ford Racing M-4700-C
Royal Purple Max Gear 75w140 Gear Oil - Royal Purple 1301
Royal Purple Max Gear 75w90 Gear Oil - Royal Purple 1300
Chrome Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Chrome Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6) - Ford Racing M-4033-G2
Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing 8.8in Rear Axle Bearing & Seal Kit (86-04 Excludes IRS) - Ford Racing M-1225-B
Ford Racing Traction - LOK Limited Slip Differential w/ Carbon Discs - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-F318C
Ford Racing T-2 Torsen Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31
Ford Racing FR500S Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31H
Eaton Limited Slip Differential -  31 Spline 8.8in (86-13 V8; 11-13 V6) - Eaton 19588-1
Auburn Pro Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542054
Auburn HP Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542025
Auburn Ected Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 545002
Yukon Gear Duragrip Posi Rear Differential - 28 Spline 8.8in (86-04 V8) - Yukon Gear YDGF8.8-28-1
Yukon Gear Duragrip Posi Rear Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Yukon Gear YDGF8.8-31-1

1999-2004 Mustang Bullitt Gears

Motive Performance Plus 3.73 Gears (99-04 GT) - Motive Gears F888373
Motive Performance Plus 3.90 Gears (99-04 GT) - Motive Gears F888390
Motive Performance Plus 4.10 Gears (99-04 GT) - Motive Gears F888410
Motive Performance Plus 4.30 Gears (99-04 GT) - Motive Gears F888430
Motive Performance Plus 4.56 Gears (99-04 GT) - Motive Gears F888456
Ford Racing 3.55 Gears (99-04 GT) - Ford Racing M-4209-G355A
Ford Racing 3.73 Gears (99-04 GT) - Ford Racing M-4209-F373N
Ford Racing 4.10 Gears (99-04 GT) - Ford Racing M-4209-G410A
USA Standard 3.55 Gears (99-04 GT) - Yukon Gear ZG F8.8-355
USA Standard 3.73 Gears (99-04 GT) - Yukon Gear ZG F8.8-373
USA Standard 3.90 Gears (99-04 GT) - Yukon Gear ZG F8.8-390
USA Standard 4.10 Gears (99-04 GT) - Yukon Gear ZG F8.8-410
USA Standard 4.56 Gears (99-04 GT) - Yukon Gear ZG F8.8-456
Excel by Richmond 3.55 Gears (99-04 GT) - Richmond F88355
Speed Sensor Connector (79-04 All) - Pony Enterprises 1074
Ford Racing Speedometer Recalibration Tool (94-10 All) - Ford Racing M-4209ADPT-A
Ford Racing Ring & Pinion Installation Kit - 8.8in Solid Rear (86-04 V8) - Ford Racing M-4210-C
Rear End Installation and Bearing Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears R8.8RMK
Rear End Installation Kit - 8.8in (86-12 V8; 11-13 V6) - Motive Gears F8.8IK
Ford Racing Traction - LOK Rebuild Kit w/ Carbon Discs - 8.8in (86-12 V8; 11-13 V6) - Ford Racing M-4700-C
Royal Purple Max Gear 75w140 Gear Oil - Royal Purple 1301
Royal Purple Max Gear 75w90 Gear Oil - Royal Purple 1300
Chrome Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 7.5in (79-85 V8; 86-10 V6)
Differential Cover - 8.8in (86-13 GT, Mach 1; 07-12 GT500; 93-98 Cobra; 11-13 V6)
Ford Racing 8.8in Rear Axle Bearing & Seal Kit (86-04 Excludes IRS) - Ford Racing M-1225-B
Ford Racing Traction - LOK Limited Slip Differential w/ Carbon Discs - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-F318C
Ford Racing T-2 Torsen Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31
Ford Racing FR500S Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Ford Racing M-4204-T31H
Eaton Limited Slip Differential -  31 Spline 8.8in (86-13 V8; 11-13 V6) - Eaton 19588-1
Auburn Pro Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542054
Auburn HP Series Limit Slip Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 542025
Auburn Ected Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Auburn Gear 545002
Yukon Gear Duragrip Posi Rear Differential - 28 Spline 8.8in (86-04 V8) - Yukon Gear YDGF8.8-28-1
Yukon Gear Duragrip Posi Rear Differential - 31 Spline 8.8in (86-13 V8; 11-13 V6) - Yukon Gear YDGF8.8-31-1