This kit contains a 6 tooth drive gear and a 20 tooth driven gear, a driven gear retaining clip, and a drive gear retaining clip. This is the most accurate gear combination for a T5 car equipped with 4.30 gears.
When you change the rear end gears in your Mustang you will need to recalibrate your speedometer by installing a new speedometer gear. Our Mustang speedometer gears are inexpensive and only take a few minutes to replace! Check out our speedometer gear installation instructions for a full write up with pictures on how to change the speedometer gear in your Mustang.
I installed this after I put an 8,8 rear with 4.30 gears in it. My speed was matching perfectly comparing to a gps. I ran this for about 200 miles the retaining clip for the drive gear in the transmission broke so now I don't have any speed showing. I thought it was the cable but it was the gear retaining clip. Now I have to pull the transmission apart again not looking forward to that. Other then the stupid little clip this kit is Great.
Yes, I would recommend this item to a friend!
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Chris H. on
I just finished installing these gears. I checked my speedometer with a gps and its completely accurate.
Ford Motor Company Genuine Parts, Motorcraft® Parts and Ford and Motorcraft Remanufactured Parts are all excellent choices when it comes to performance, longevity and value for your Mustang or SVT Lightning. And they’re all backed by a Ford Motor Company limited parts warranty*, so you know their parts you use are going to perform like they should. Put the same parts on your Lighting & Mustang that came from the factory!
my 90 mustang is mostly stock, 64,000 original miles on the 302c.i. 5.0 motor. no rust, interior is all original and clean, no rips, upgraded the throttle body and cold air intake, 130amp alternator, ...