Richmond Excel by 3.55 Gears (05-09 GT)

Richmond Excel by 3.55 Gears (05-09 GT)
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OUR PRICE$159.99
Market Price $179.99You Save 11% ($20.00)
Item # 21525G05
Add Gear Install Kit
Add Traction-LOK Rebuild Kit w/ Carbon Discs
Add 2010 8.8in Rear Gear Pinion Bearing
PRICE WITH OPTIONS $159.99
AmericanMuscle no longer carries the Richmond Excel by 3.55 Gears (05-09 GT). Please check out 05-09 Mustang Gears for an updated selection.
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Product Features

  • Better than OEM quality
  • 3.55 Gear Ratio
  • 8.8" Ring Gear Diameter
  • Fits 2005-2009 GT, Bullitt and GT500 Mustangs
  • Made in the USA
Improves Off The Line Bite. Are you looking to install a steeper set of gears in your Pony to get more low end grunt off the line? Then look no further than a set of Richmond gears. Richmond has been making high quality gears at a friendly price for well over 80 years.

Made in the USA. Manufactured right here in the USA, Richmond uses state-of-the-art manufacturing and extensive testing to produce a superior quality ring and pinion gear set at an excellent price.

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 Richmond 3.55 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.

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.

Approximate RPM for 2005-2010 GT


Manual
Gear @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


Automatic
Gear @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

Installation Time:

(approx) 4 Hours

Difficulty Level:

Mechanical expertise or professional installation required.

What's in the box?

  • (1) Ring gear
  • (1) Pinion gear

Installation Guides:

What's in the box?

  • (1) Ring gear
  • (1) Pinion gear
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Fitment:
  • GT 05, 06, 07, 08, 09
  • GT500 07, 08, 09
  • Bullitt 08, 09

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