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EXCEL from Richmond 3.73 Gears (86-93 GT)

Market Price $179.99 You Save 11% ($20.00)
Our Price

$159.99

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  • Item 21526G87
  • MPN# F88373

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Features & Details

  • Superior Quality
  • 3.73:1 Gear Ratio
  • 8.8" Ring Gear Diameter
  • For Street or Track Use
  • Made in the USA
  • Fits 1986-1993 GT, 5.0 LX and SVT Cobra
Improve Off The Line Acceleration. Get your classic Fox Body Mustang up and moving by installing a set of Richmond Excel 3.73 Ring and Pinion Gears. Richmond's Excel 3.73 Gears have a higher ratio when compared to the gears installed by Ford at the factory. This steeper ratio is designed to get your Mustang into its power band quicker which will improve low end torque for faster acceleration. A set of 3.73 gears are perfect for use in street, track and drag applications.

Superior Quality. Richmond proudly manufactures their Ring and Pinion Gear Sets right here in the USA. Using state-of-the-art manufacturing processes and extensive quality control testing, Richmond produces a superior quality Ring and Pinion Gear Set at an excellent price. Richmond is so confident in the quality of their products that they back them with a 6 month, 50,000 mile no-nonsense warranty. 

Recommended Upgrade. Please note that when changing the gear ratio of your Mustangs rear differential that the calibration of your speedometer will no longer be correct and will display the wrong speed. However, you can easily fix this annoying issue with a new Speedometer Gear (sold separately).

Application. This 3.73 ratio Richmond Excel Ring and Pinion Gear set will fit all 1986 to 1993 V8 Mustangs equipped with an 8.8" solid axle rear end, including the GT, 5.0 LX, and SVT Cobra models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, 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.

Fitment: 1986 1987 1988 1989 1990 1991 1992 1993 Details

What's in the Box
  • (1) Ring gear
  • (1) Pinion gear
Installation Info
Tech Specs

Approximate RPM for 1986-1993 GT


Manual
Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 3876 5427 6977      
2 2289 3205 4120 5036 5951 6867
3 1100% 2142 2754 3366 3978 4590
4 1150 1610 2070 2531 2991 3451
5 771 1079 1387 1695 2004 2312


Automatic
Gear @25 MPH @35 MPH @45 MPH @55 MPH @65 MPH @75 MPH
1 2761 3865 4969 6073    
2 1687 2362 3037 3712 4386 5061
3 1150 1610 2070 2531 2991 3451
4 767 1074 1380 1687 1994 2301
Will it fit my Mustang?
  • Foxbody - 86, 87, 88, 89, 90, 91, 92, 93

Most Helpful Reviews

5/5
sweeeet

Great gear,Great price.just great...if jesus and moses says its great, then you know it is. ^^^^

Helpful (1)

5/5
great

awesome! just simply awesome, from the price to the performance

Helpful (0)

Overall Rating 4.8 out of 5 stars
Read All 4 Reviews

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Customer Reviews (4) Write a Review

Overall Rating 4.8

out of 5 stars




  • 5/5

    February 20, 2010

    sweeeet

    Great gear,Great price.just great...if jesus and moses says its great, then you know it is. ^^^^

    moses

    Helpful (1)

  • 5/5

    January 02, 2010

    great

    awesome! just simply awesome, from the price to the performance

    Jesus

    Helpful (0)

  • 5/5

    April 14, 2011

    great gears

    these gears are great! i had stock 273's in my convertible lx and they were no fun. now my car darts off the line and i feel the power all the way through the RPMs. Installation's a little pricey but worth every penny. Gas mileage does not change much as well

    Mr

    Year: 1993 Submodel: Other

    Helpful (0)

  • 4/5

    June 30, 2010

    rear end rebuild

    WORKS REALLY WELL,MUCH BETTER ON THE BOTTOM END THAN STOCK GEARS,LITTLE NOISE BUT NOTHING TOO BAD.

    Clayton Hopkins

    Helpful (0)

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