The Super 8.8 IRS is a little different than your standard gear change, so we have done all of the work for you!

We have done all of the work for you to put together this kit!

Parts Included in Kit:

Ford Racing Gears
Ford Racing IRS Gear Install Kit
Ford Racing Track LOK LSD Differential (only for 3.15 current gear selection)

Ford Performance

Ford Performance Ring Gear and Pinion Kit - 4.56 Gears for Ford 8.8

$225.00 $169.99 Save $55.01

Ford Racing Quality
Strong Forged Construction
4.56 Gear Ratio
8.8" Ring Gear Diameter
For Street or Track Use
Fits 1987-2014 GT, Bullitt and GT500 Mustangs & 2011-2014 V6 Mustangs (Excluding IRS Cobras)

Improve ET's and low end torque. Are you looking to get more low end grunt off the line and lower ET's at the same time? Then look no further than installing a set of steeper gears in your Pony. Ford Racing Ring and Pinion Gears are perfect for street, road, or race use.

Superior Quality. These Ford Racing 4.56 Mustang ring and pinion gears feature a super strong forged construction, CNC cut & lapped gear teeth, and a black oxide finish to resist corrosion.

Application. This Ford Racing Ring and Pinion Gear set will fit all 2005 to 2010 V8 Mustangs including the GT, Bullitt and GT500 models. A master bearing kit is recommended by most installers, especially on high mileage vehicles, see drop down option above.

Please Note. Due to the high numeric gear ratio, it will require a notched gear cross pin for proper installation.

Attention 2010 and newer Mustang Owners. Starting in 2010 Ford changed the inner rear gear pinion bearing in all 8.8" equipped Mustangs. Because of this you will require a new 8.8" rear gear pinion bearing (Ford part# 9L3Z-4630-A) for proper installation, please 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.

Ford Performance Ring Gear and Pinion Kit - 4.56 Gears for Ford 8.8

Yukon Gear

Yukon Gear 9.75 in. Spider Gear Kit for 34 Spline Axles (97-19 F-150)

$200.90 $177.79 Save $23.11

Features & Details

High Quality Construction
Includes All Needed Gears
Fits Ford’s 9.75 in. Open Differential
Designed for 34 Spline Axles
Long Lasting
Fits 1997-2018 Ford F-150s

Master Your Turns. Having gears that can turn both ways empowers your vehicle to gain better traction on turns. These gears, called spider gears, allow one tire to spin while the other moves slowly, helping your vehicle stay balanced and grounded when whipping and whirling around a back road or a race track. Use this Yukon Gear 9.75 Spider Gear Kit for 34 Spline Axles to get your Ford ready to master any turn you take.

Rely on Long-Lasting Gears. Built from high quality materials, this spider gear kit is better than the factory option. Its durable construction leads to long-lasting strength.

Install Everything You Need. Complete with two pinion gears, two side gears, a cross pin shaft, and a cross pin bolt, this kit comes with everything you need for a straightforward install. Use the spider gear thrust washers to secure the fit and upgrade your vehicle.

Application. The Yukon Gear 9.75 in. Spider Gear Kit is designed to offer rugged durability to 1997-2018 Ford F-150s with a 9.75 in. differential and 34 Spline Axles

Yukon Gear

Yukon Gear 9.75 in. Rear Ring Gear and Pinion Kit - 5.13 Gears (97-10 F-150)

$363.71 $321.87 Save $41.84

Features & Details

Yukon Rear Gear
Forged from 8620 Triple Alloy Steel
5.13 Gear Ratio
9.75" Ring Gear Diameter
Designed for the Harshest Conditions
Fits All 1997-2010 Ford F-150s with 9.75" Differential

Wake Up Your Truck. Installing a set of steeper gears is a great way to get your F-150 into the power band quicker for improved low end torque, faster acceleration off the line and quicker ET's. A set of 5.13 Yukon Gears will really wake up your F-150.

Better Than OEM Quality. Instead of going with shortcuts, Yukon Gears only uses solid steel to make this ring gear and pinion. As a result, they can handle the rigors of driving hard on the road or rugged trails. Using state-of-of-the-art equipment and manufacturing techniques Yukon Ring & Pinion sets are made to higher than OEM standards from forged 8620 triple alloy steel and are backed by a one year warranty.

Application. This 5.13 Yukon Gear & Axle Ring and Pinion Gear set is designed to fit on 1997 to 2010 Ford F-150s with a 9.75" Rear Differential.

Please Note. If you are unsure if your F-150 has an 8.8 in. (10 Bolt) or a 9.75 in. (12 Bolt) rear, please check with your local Ford dealer to determine what rear is in your truck. 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.

Yukon Gear

Yukon Gear 9.75 in. Rear Ring Gear and Pinion Kit - 4.88 Gears (11-19 F-150)

$394.19 $348.84 Save $45.35

Features & Details

Yukon Rear Gear
Forged from 8620 Triple Alloy Steel
4.88 Gear Ratio
9.75" Ring Gear Diameter
Designed for the Harshest Conditions
Fits All 2011-2018 Ford F-150s with 9.75" Differential

Wake Up Your Truck. Installing a set of steeper gears is a great way to get your Truck into the power band quicker for improved low end torque, faster acceleration off the line and quicker ET's. A set of 4.88 Yukon Gears will really wake up your F-150.

Better Than OEM Quality. With a solid steel construction, you can depend on this Rear Ring Gear and Pinion to withstand heavy use over prolonged periods of time without any issues. Using state-of-of-the-art equipment and manufacturing techniques Yukon Ring & Pinion sets are made to higher than OEM standards from forged 8620 triple alloy steel and are backed by a one year warranty.

Application. This 4.88 Yukon Gear & Axle Ring and Pinion Gear set is designed to fit on 2011 to 2018 Ford F-150s with a 9.75" Rear Differential.

Please Note. If you are unsure if your F-150 has an 8.8 in. (10 Bolt) or a 9.75 in. (12 Bolt) rear, please check with your local Ford dealer to determine what rear is in your truck. 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.

Yukon Gear

Yukon Gear 9.75 in. Rear Ring Gear and Pinion Kit - 4.56 Gears (11-19 F-150)

$394.19 $348.84 Save $45.35

Features & Details

Yukon Rear Gear
Forged from 8620 Triple Alloy Steel
4.56 Gear Ratio
9.75" Ring Gear Diameter
Designed for the Harshest Conditions
Fits All 2011-2019 Ford F-150s with 9.75" Differential

Wake Up Your Truck. This Ring Gear and Pinion Set is designed for whatever conditions you can drive through. The latest design and manufacturing technologies are used to provide a quiet running gear that is strong and able to withstand street, off-road, and track driving. Installing a set of steeper gears is a great way to get your Truck into the power band quicker for improved low end torque, faster acceleration off the line and quicker ET's. A set of 4.56 Yukon Gears will really wake up your F-150.

Better Than OEM Quality. Using state-of-of-the-art equipment and manufacturing techniques Yukon Ring & Pinion sets are made to higher than OEM standards from forged 8620 triple alloy steel and are backed by a one year warranty.

Application. This 4.56 Yukon Gear & Axle Ring and Pinion Gear set is designed to fit on 2011 to 2019 Ford F-150s with a 9.75" Rear Differential.

Please Note. If you are unsure if your F-150 has an 8.8 in. (10 Bolt) or a 9.75 in. (12 Bolt) rear, please check with your local Ford dealer to determine what rear is in your truck.

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.

Yukon Gear

Yukon Gear 9.75 in. Rear Ring Gear and Pinion Kit - 4.11 Gears (11-19 F-150)

$498.25 $440.93 Save $57.32

Features & Details

Yukon Rear Gear
Forged from 8620 Triple Alloy Steel
4.11 Gear Ratio
9.75" Ring Gear Diameter
Designed for the Harshest Conditions
Fits All 2011-2018 Ford F-150s with 9.75" Differential

Improved Performance. If your 2011-2018 F-150 is equipped with a 9.75-inch 12 bolt rear differential and you want to upgrade the gear ratio with a gear set that is strong, but not loud this Yukon Gear 9.75 in. Rear Ring Gear and Pinion Set will do the job. This ring and pinion set is ideal for drivers looking to increase the performance level and the towing capabilities of their truck.

Better Than OEM Quality. Using state-of-of-the-art equipment and manufacturing techniques Yukon Ring & Pinion sets are made to higher than OEM standards from forged 8620 triple alloy steel and are backed by a one year warranty.

Application. This 4.11 Yukon Gear & Axle Ring and Pinion Gear set is designed to fit on 2011 to 2018 Ford F-150s with a 9.75" Rear Differential.

Please Note. If you are unsure if your F-150 has an 8.8 in. (10 Bolt) or a 9.75 in. (12 Bolt) rear, please check with your local Ford dealer to determine what rear is in your truck.

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.

Ford Racing GearsFord Racing IRS Gear Install KitFord Racing Track LOK LSD Differential (only for 3.15 current gear selection)

Features & Details

Features & Details

Features & Details

Features & Details

Features & Details

Ford Racing Gears
Ford Racing IRS Gear Install Kit
Ford Racing Track LOK LSD Differential (only for 3.15 current gear selection)