Ford Racing 3.55 Gears (05-09 GT)

Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

Superior Quality. These Ford Racing 3.55 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

Recommended Upgrade. Changing the rear axle gear ratio will throw off the calibration of your Mustangs speedometer, but a Ford Racing Speedometer Recalibration Tool is an inexpensive way to fix this issue.

Application. This Ford Racing Ring and Pinion Gear set will fit all 2005 to 2010 V8 Mustangs including the GT, Bullitt and GT500 models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

Attention 2010 and newer Mustang Owners. Starting in 2010 Ford changed the inner rear gear pinion bearing in all 8.8" equipped Mustangs. Because of this you will require a new 8.8" rear gear pinion bearing (Ford part# 9L3Z-4630-A) for proper installation, please see drop down option above.

Approximate RPM for 2005-2010 GT Manual
Gear	Speed
	25 MPH	35 MPH	45 MPH	55 MPH	65 MPH	75 MPH
1	3700	5180	6660
2	2190	3065	3941	4817	5693	6569
3	1445	2023	2601	3179	3757	4335
4	1095	1533	1971	2408	2846	3284
5	744	1042	1340	1638	1936	2233

Approximate RPM for 2005-2010 GT Automatic
Gear	Speed
	25 MPH	35 MPH	45 MPH	55 MPH	65 MPH	75 MPH
1	3525	4935	6345
2	2507	3510	4513	5515	6518
3	1686	2360	3035	3709	4383	5058
4	1095	1533	1971	2408	2846	3284
5	777	1088	1399	1710	2021	2332

Technical Note. Installation costs will vary, but a good rule of thumb is between $250 and $300. Be sure to work with a reliable shop that you trust for installations. You can also save money on your installation labor by having your Trac-Lok rebuilt at the same time as your gears are installed, see drop down option above.