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Features, Description, Reviews, Q&A
Improve Fuel Efficiency. With the Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit, you enhance fuel efficiency when using larger tires. That means stronger performance on-road and off, without having to worry about increased costs.
Re-Gearing. When you install tires with a larger diameter than your stock tires, your factory ring and pinion kit have to rotate more to turn them. The result is more engine power required to achieve the same performance. By re-gearing, you come closer to factory performance levels with larger tires.
Solid Construction. The 8620 steel used to make these ring and pinion sets ensure they’re strong enough to handle years of daily spinning.
Professional Fitting Suggested. The intricacy of the installation process means that professional installation is recommended in most cases. Those installing at home will need to have an expert understanding of their vehicle’s drivetrain.
Covered By Warranty. You’re protected against manufacturing and material faults with a limited warranty that lasts for either 50,000 miles or 1 year.
Application. The Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit is designed to fit Ford F-150 4WD models built between late 1999-2010.
Application Note. The rear ring and pinion set requires a 9.75 carrier, with the front set needing an 8.8 IFS carrier.
Fitment:
Motive Gear MGK-321
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Feb 27, 2025
Review shared from Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit; 4.56 Gear Ratio (11-20 4WD F-150)
Torque
All the torque you could dream of. I can break lose in 4high on asphalt. I do have other mods to though.
Nov 5, 2024
Review shared from Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit; 4.56 Gear Ratio (Late 99-10 4WD F-150)
Gears for my f150
Awesome woke the old girl up 303000 miles and still kicking thanks you guys works great
Dec 5, 2023
Review shared from Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit; 4.56 Gear Ratio (Late 99-10 4WD F-150)
Motive Gear 4.56
Very good quality product! Was a huge upgrade from my stock 3.55 ratio to 4.56 with 37” tires. Freed up so much power! Had them professionally installed and took about 4 hours.
Apr 16, 2023
Review shared from Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit; 4.88 Gear Ratio (11-20 4WD F-150)
Raptor SVT with 39 K2Os
I used this to get closer to the stock torque after installing 39-in BFG tires. On my 2014 Raptor SVT I pull a 12-ft 8000 lb trailer 90% of the time. And was looking for a way to get some better get up and go power
Feb 27, 2025
Review shared from Motive Gear 8.80-Inch Front and 9.75-Inch Rear Axle Complete Ring and Pinion Gear Kit; 4.56 Gear Ratio (11-20 4WD F-150)
Torque
All the torque you could dream of. I can break lose in 4high on asphalt. I do have other mods to though.
Dec 26, 2024
Review shared from Motive Gear Super 8.8 and 9.75-Inch Differential Ring Gear Bolt (97-21 F-150)
Superior product
Glad I was able to purchase this and even better that the shipping was fast and easy
Dec 26, 2024
Review shared from Motive Gear Differential Lock Washer (99-20 Silverado 1500)
Strong washer
Will have to order more because of great the quality is and they do their job great!
Dec 26, 2024
Review shared from Motive Gear 8.50-Inch Differential Pinion Gear Thrust Washer (99-14 Silverado 1500)
Fitment is great
Way better quality then the factory one my truck came with.
Dec 19, 2024
Review shared from Motive Gear 9.25-Inch Differential Pinion Nut (07-15 Sierra 2500 HD)
Easy install
Can’t believe this is all I needed to get my truck running and glad it was in stock and ship quickly
Dec 19, 2024
Review shared from Motive Gear 7.25-Inch Differential Side Gear Thrust Washer (87-96 Dakota)
Easy Install
Quality sure is phenomenal Made of strong material that should last a long time
Dec 19, 2024
Review shared from Motive Gear Rear Differential Side Gear Thrust Washer (07-18 Sierra 2500 HD)
Great quality
Way better quality than I expected. I am glad it was in stock here because I needed it soon.
Dec 19, 2024
Review shared from Motive Gear 7.25 and 8-Inch Differential Pinion Nut (87-11 Dakota)
Looks and feels great
Was very easy to install straightforward can’t complain with this price point. I would order again.
Dec 12, 2024
Review shared from Motive Gear Ring Gear Bolt for Chrylser 7.25-Inch and 8-Inch Differential (02-10 RAM 1500)
Strong bolt
Works great and really strong material that it’s made out of. I would order again
Dec 9, 2024
Review shared from Motive Gear Super 8.8 and 9.75-Inch Differential Ring Gear Bolt (97-21 F-150)
Easy to install
Less than 10 minutes to install. Quality product that is shipped super fast