2019-2025
2014-2018
2007-2013
1999-2006
Installation Time
(approx) a Day
Difficulty Level:
Mechanical expertise or professional installation required.
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Yukon Gear 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 3.08 Gear Ratio (07-18 Sierra 1500)Find parts that fit my vehicle
Item S500843
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M-F 8:30A-11P, Sat-Sun 8:30A-9P
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3 Reviews
Our Price
$587.89
Ship to: 43215
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Product Information
Features, Description, Reviews, Q&A, Specs & Installation
Features
- Rugged Build
- Boosts Performance
- For Street or Trail Use
- Quiet Operation
- 8.5-inch Ring Gear
- 10 Ring Gear Bolts
- 30 Spline Pinion
- 3.08 Ratio
- For 2007-2018 GMC Sierras
Description
Elevate Performance. Push the performance envelope of your Sierra by going with this Yukon Gear 8.5 in. & 8.6 in. Rear Ring Gear and Pinion Set. It features a 3.08 ratio, ensuring you can get through all kinds of rugged trail conditions, and when bad weather strikes on the roads you drive daily. You won't have to endure noisy operation, because this kit is designed to generate little noise, making it practical for everyday use.
Rugged Construction. Each component in this set is made by Yukon Gears out of high-quality solid steel. As a result, the gears can withstand rugged use and keep working perfectly.
Everyday Practicality. You rely on your truck to run strong every day, and this Yukon Gear 8.5 in. & 8.6 in. Rear Ring Gear and Pinion Set won't slow you down. In fact, Yukon Gears stands behind it with a one-year warranty against manufacturer defects, boosting your confidence. The setup with an 8.5-inch ring gear, 10 ring gear bolts and a 30-spline pinion is designed to run smoothly and with little noise, so you can enjoy driving around town without any issues.
Application. This Yukon Gear 8.5 in. & 8.6 in. Rear Ring Gear and Pinion Set was designed for 2007-2018 GMC Sierras.
Rugged Construction. Each component in this set is made by Yukon Gears out of high-quality solid steel. As a result, the gears can withstand rugged use and keep working perfectly.
Everyday Practicality. You rely on your truck to run strong every day, and this Yukon Gear 8.5 in. & 8.6 in. Rear Ring Gear and Pinion Set won't slow you down. In fact, Yukon Gears stands behind it with a one-year warranty against manufacturer defects, boosting your confidence. The setup with an 8.5-inch ring gear, 10 ring gear bolts and a 30-spline pinion is designed to run smoothly and with little noise, so you can enjoy driving around town without any issues.
Application. This Yukon Gear 8.5 in. & 8.6 in. Rear Ring Gear and Pinion Set was designed for 2007-2018 GMC Sierras.
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Fitment:
- 2007 GMC Sierra 1500
- 2008 GMC Sierra 1500
- 2009 GMC Sierra 1500
- 2010 GMC Sierra 1500
- 2011 GMC Sierra 1500
- 2012 GMC Sierra 1500
- 2013 GMC Sierra 1500
- 2014 GMC Sierra 1500
- 2015 GMC Sierra 1500
- 2016 GMC Sierra 1500
- 2017 GMC Sierra 1500
- 2018 GMC Sierra 1500
Yukon Gear YG GM8.5-308
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) Ring Gear
- (1) Pinion Gear
4.7
Customer Reviews (3)
Oct 13, 2018
Review shared from Yukon Gear 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 4.88 Gear Ratio (07-18 Sierra 1500)
2007 - Alex
Installation Time: Afternoon
Solid Gears
Excellent set of gears. Provided you have all the necessary tools, you can change your gears in your driveway easy. Local shop wanted $1600 for just the rear gears (double that if you have a 4x4). $300 and a solid Youtube video later, I have all the power that I lost when I upgraded to 35 inch tires, and then some. The Yukons make a little more noise than the manufacturer gears, but they're like half the price, so I thought that was a fair trade, plus when I upgrade my exhaust, it'll cover it.
Jan 27, 2020
Review shared from Yukon Gear 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 2.73 Gear Ratio (07-18 Silverado 1500)
2014 LTZ - Tthorson57
Installation Time: Afternoon
Excellent
Gets great fuel economy and much higher top speed...not that hard to install but I recommend using a car lift. I also recommend getting a tuner to recalibrate your speedometer since you’ll be going faster
Jul 17, 2018
Review shared from Yukon Gear 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 4.11 Gear Ratio (07-18 Silverado 1500)
2015 - SebastianD
Installation Time: Shop Install
Great product
This new gear is really great use it as a daily and on the track couldn't be more impressed
Performance Gain 5/5
Fit 5/5
Bang For Your Buck 5/5
Reviews of Yukon Gear Drivetrain products have an average rating of 4.8 out of 5
Oct 13, 2018
Review shared from Yukon Gear 8.5-Inch and 8.6-Inch Rear Axle Ring and Pinion Gear Kit; 4.88 Gear Ratio (07-18 Sierra 1500)
2007 - Alex
Solid Gears
Excellent set of gears. Provided you have all the necessary tools, you can change your gears in your driveway easy. Local shop wanted $1600 for just the rear gears (double that if you have a 4x4). $300 and a solid Youtube video later, I have all the power that I lost when I upgraded to 35 inch tires, and then some. The Yukons make a little more noise than the manufacturer gears, but they're like half the price, so I thought that was a fair trade, plus when I upgrade my exhaust, it'll cover it.
Dec 19, 2024
Review shared from Yukon Gear 1/2 x 2-Inch Axle Stud; Screw-In Design (97-09 F-150)
2023 - Augustus96
Great product
And even better shipping, got here super quick and went right in
Dec 12, 2024
Review shared from Yukon Gear Differential Cover Bolt; Rear; Dana 60; Differential Cover Bolt (04-06 2WD RAM 1500)
2019 Limited - Augustus96
Great finish
Bolt should last a long time with the quality of finish that’s on there. Looks good
Dec 7, 2024
Review shared from Yukon Gear Differential Ring Gear Bolt; Rear Differential; Ford 9.75-Inch; Ring Gear Bolt (97-17 F-150)
2016 XLT - Augustus96
Strong and good
Quality sure is great and fit perfectly for me. I would buy again
Nov 4, 2024
Review shared from Yukon Gear Differential Cover Bolt (97-25 F-150)
2018 Raptor - LisbethArizona
Great value
Perfect fit! Shipping was quick and well package. I recommend
Oct 10, 2024
Review shared from Yukon Gear Differential Side Gear Thrust Washer; Rear; GM 8.60-Inch; Standard Open (99-17 Sierra 1500)
LisbethArizona
Always great quality
Got here fast! Strong heavy quality like you’d expect. Went on perfectly and glad I ordered from American trucks
Sep 29, 2024
Review shared from Yukon Gear Differential Ring Gear Bolt; Rear Differential; Ford 9.75-Inch; Ring Gear Bolt (97-17 F-150)
2020 Raptor - LisbethArizona
Perfect fit
Fit perfectly. Didn’t have to work hard to install it. Glad it went in smooth. Quality sure is great
Dec 21, 2023
Review shared from Yukon Gear Differential Cover; 9.25-Inch; Chrome (02-18 RAM 1500)
Duty
Ram Beast
What a difference it made looking at the rear of my truck.
May 31, 2023
Review shared from Yukon Gear Differential Pinion Seal; Rear; Ford 9.75-Inch (99-10 F-150)
2004 XLT - Ceejay
Ford 9.75" Yukon Differential Pinion Seal
Excellent quality and fitment as expected from the house of Yukon. Half the cost of an OEM seal. I've used a few Yukon seals without issue and zero leaks. Highly Recommended
Apr 17, 2023
Review shared from Yukon Gear 9.25-Inch Dura Grip Positraction ZF Rear Differential (11-18 RAM 1500)
2014 Express - Willywill
Great Product!
You definitely pay for what you get, and this positrac diff definitely cost a pretty penny in itself and the installation. I offroad a lot and having this diff makes a world of difference when climbing up steep hills with loose dirt. BTW if youre looking to upgrade your gears, I went with 4.11 gear ratio which is a step up from the factory 3.92 ratio. (I run 35's)
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