Yukon Toyota 8" Ring & Pinion Gear Set - V6, Rear, 29-Spline
YUKYG TV6-373-29
The Yukon Toyota 8" V6 Ring & Pinion Gear Set is built for Toyota rear differentials using the larger 8.125" ring gear and 29-spline pinion configuration. Re-gearing allows you to better match axle ratio to tire size, vehicle weight, transmission gearing, and intended use, helping restore acceleration and low-speed control when larger tires or drivetrain changes alter the vehicle's effective gearing.
Manufactured from high-grade steel and precision machined for consistent gear mesh, this Yukon gear set is designed for street, trail, towing, and off-road applications where strength and long-term reliability matter. Proper setup of pinion depth, backlash, and bearing preload is critical for quiet operation and gear life.
Includes:
- (1) Toyota 8" V6 Ring Gear
- (1) Matching 29-Spline Pinion Gear
Specifications
| Specification | Details |
|---|---|
| Manufacturer | Yukon Gear & Axle |
| Differential | Toyota 8" V6 Rear |
| Ring Gear Diameter | 8.125" |
| Pinion Spline Count | 29 Spline |
| Ring Gear Bolt Count | 10 |
| Material | High-Grade Steel |
| Manufacturing | Precision Machined |
| Heat Treatment | Heat Treated for Strength and Durability |
| Application | Street, Trail, Towing & Off-Road |
Fitment
| Make | Model | Year Range |
|---|---|---|
| Lexus | GX470 | 2003–2009 |
| Toyota | 4Runner | 1985–2009 |
| Toyota | FJ Cruiser | 2007–2009 |
| Toyota | Pickup | 1985–1995 |
| Toyota | T100 | 1993–1998 |
| Toyota | Tacoma | 1995–2019 |
| Toyota | Tundra | 2000–2006 |
Fitment Notes:
- Fits Toyota 8" V6 rear differential applications using an 8.125" ring gear.
- Requires a 29-spline pinion configuration.
- Requires pinion nut part number YSPPN-024.
- Vehicle year and model do not guarantee differential fitment; verify the actual axle and differential before ordering.
- Confirm ring gear diameter, pinion spline count, and gear ratio before purchase.
- Axle swaps and differential changes are common on Toyota off-road builds, so axle identification is more important than original vehicle application.
- Professional ring and pinion setup is recommended.
FAQ
How do I know if I have a Toyota 8" V6 differential?
This gear set is for Toyota V6 rear differentials using an 8.125" ring gear and 29-spline pinion. Because Toyota used multiple axle configurations across many models and years, verify the actual differential before ordering.
Why regear a Toyota axle after installing larger tires?
Larger tires effectively reduce the numerical gearing of the drivetrain, which can hurt acceleration and low-speed control. A higher numerical gear ratio can help restore torque multiplication and improve drivability.
What pinion nut does this Toyota 8" gear set require?
This 29-spline Toyota V6 gear set requires pinion nut part number YSPPN-024.
Do Toyota ring and pinion gears require professional setup?
Proper installation requires accurate pinion depth, backlash, bearing preload, and gear tooth contact pattern. Incorrect setup can cause noise, overheating, premature bearing wear, or gear failure.
Can this Yukon gear set be used for off-road applications?
Yes. Yukon ring and pinion gears are commonly used in trail rigs, rock crawlers, overland builds, and other Toyota off-road applications where gearing is matched to tire size and intended use.