Ford Performance IRS Ring and Pinion Gear Kit; 3.55 Gear Ratio (15-24 Mustang)

10 customer reviews
SKU: 93DE6E16
In Stock

$221.99

In Stock
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Description

Upgrade OEM Gears. Are you looking to upgrade to a stronger set of rear gears? Then look no further than installing a set of genuine Ford Racing Gears in your 2015-2024 S550 Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, and race applications.Superior Quality. Manufactured in the USA, these Ford Racing Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and are completed in a black oxide finish to resist…

10 reviews for Ford Performance IRS Ring and Pinion Gear Kit; 3.55 Gear Ratio (15-24 Mustang)

  1. HunterV –

    Great product! Definitely more aggressive through the gears.

  2. Dredv6 –

    This gets you into the rpm sweet spot faster and it’s a blast.

  3. Horseman –

    They look well manufactured. There are no burrs or bad machining marks. I work in a machine shop so I know a good finish when I see one.

  4. MichaelB –

    I needed a little higher rear end ratio for my ride. The 3.55’s did the trick

  5. StanS –

    I use Ford Performance parts whenever possible. I know that it will fit and perform as advertised.

  6. repins –

    I ended up not installing as I decided to go FI. The quality and appearance are top notch. I gave them to a fellow S550 driver who went from the 3.31 to the 3.55. He is staying NA so it works out. I drove his car after the swap and it definitely pulls much harder. First gear is not useless though like with the 3.73s.

  7. EricM –

    This is the OEM Ford Racing 3.31 gears. Exceptional build quality/fit/finish. The price is unbeatable from AM as well – you can’t go wrong!

  8. Stickyy5 –

    So I don’t have the PP1 package that would’ve already included these 3.73 gears I upgraded from the trash 3.55 which are great for cruising but they lack acceleration . After driving around now with the 3.73 gears my mt82 just seems so much better. The car’s acceleration is a crazy difference. The only downside would be highway speeds at 75mph and six gear it’s a steady 2400 or so RPM with 19” wheel and a 285/40 tire which is whatever though

  9. DavidK –

    Holy schmoly it’s day and night! Once I got to the track day event, it came to life coming out of the corners. Hell, it was live from the moment I got her back from the shop !

  10. Bkmustang –

    Compared to 373s . With a 409 Differential set up you really feel a difference in acceleration coming off the line.

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