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!