Motive Performance Plus 4.10 Gears (79-85 V8; 86-10 V6)

Motive Performance Plus 4.10 Gears (79-85 V8; 86-10 V6)

About Motive Gears

Motive Gears
Celebrating Their 65th year of serving the Automotive Aftermarket, no one is more committed to providing the highest quality part available today than Motive Gears. ...... READ MORE
OUR PRICE$169.99
Market Price $179.99You Save 6% ($10.00)
Item # 21101
Ships the same business day

Accessories Options

Add 7.5in Bearing Kit
PRICE WITH OPTIONS $169.99

Product Features

  • CNC-cut from 8620 gear steel
  • For street or track use
  • Superior quality
  • 4.10 Gear Ratio
  • Fits 79-85 V8 & 86-10 V6 Mustangs
  • 7.5" Ring Gear Diameter
Improve Overall Performance. Installing a steeper set of ring and pinion gears in your V6 Mustang will get you into the power band quicker for more low grunt off the line and lower Elapsed Times.


Superior Construction & Precision Fit. These Motive ring and pinon gears are CNC cut from high grade 8620 gear steel, and factory lapped for precision fit. Each set is hardness tested prior to leaving the factory to ensure the highest quality.


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 Motive Performance Plus Ring and Pinion Gear set will fit all 1979 - 1985 V8 Ford Mustangs & 1986-2010 V6 Ford Mustangs equipped with a 7.5" rear end. 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.

Installation & Tech
Differential Gears - Installation Instructions! Differential Gears - Installation Instructions! Mustang Rear Gears - Tech Article Mustang Rear Gears - Tech Article

Installation Time:

(approx) 4 Hours

Difficulty Level:

Mechanical expertise or professional installation required.

What's in the box?

Hardware included:
  • Ring
  • Pinion

What's in the box?

Hardware included:
  • Ring
  • Pinion
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Fitment:
  • V6 94, 95, 96, 97, 98, 99, 00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10
  • Foxbody 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93
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Known Exceptions:
Fits Mustangs equipped with a 7.5" rear end.

Customer Reviews

4.622
  • 3/5
    its a mess but worth it to install
    April 19, 2010
    JEAN
    Well i bought these and when i went to install them i noticed some problems. the number one problem was that the cross shaft pin absolutely has to be grinded down if you do not buy the posi trac diffriental. the ring gear is alot thicker than that of the stock 323 gears. another thing is that the recommended parts does not say anything about this. TRUST ME IT IS A MESS TO INSTALL BY YOUR SELF BUT WELL WORTH THE POWER DIFFERENCE. IT IS NICE TO SHIFT INTO FOURTH GEAR AND HEAR A BARK WITH BRAND NEW TIRES LOL AND BY THE WAY EVERY ONE THAT COMPLAINS ABOUT THE WHINING NEEDS TO CHECK THEIR BACK LASH ON THEIR CRUSH SLEEVE BECAUSE THAT IS WHAT CAUSES IT TO WHINE
    3 of 4 voted this as helpful.No, I do not recommend this product.
  • 5/5
    Tire roaster
    April 2, 2011
    Jamie
    2007V6Daily Driver
    Love these 4.10's in my v6 manual along with the t-lok, I can smoke the tires now through 2 gears and I have big 295/45-18 nitto nt05 tires with just bolt ons :)
    0 of 0 voted this as helpful.Yes, I recommend this product.
  • 5/5
    Amazing
    April 28, 2010
    Gillian
    These gears are awsome, I get so much acceleration in my first three gears now with only a little drop in mpg. This is a great product with Limited Slip Differential. Smokin them ricers all the time now. lol
    5 of 6 voted this as helpful.Yes, I recommend this product.