Overview
The G2 Toyota 8 Inch (29 Spline) 4.56 Ratio Ring and Pinion, part 2-2058-456, is a 4.56 gear set for an 8 inch Toyota axle with 29 splines.
G2 says these gears are computer heat treated from 8620 steel, are double shot peened, and are double lapped, with a 10 year warranty.
Key features
- 4.56 gear ratio
- 29 spline axle
- Computer heat treated 8620 steel
- Double shot peened and double lapped
Spline count and axle swaps
The spline count on the ring and pinion has to match the differential and the axle shafts it works with. Axle shafts can differ between model years and models even when the bolt pattern looks the same, so the count should be read from the shaft itself rather than assumed from the housing. A mismatch will not seat properly and can damage the carrier quickly.
Swaps and rebuilds are the usual times this comes up. When the axle is opened, check the shafts, bearings and seals for wear, since fresh gears running on worn parts often lead to early problems. Plan the job so the carrier, bearings and seals are all considered together.
- Count the splines on the axle shafts before buying
- Check axle bearings and seals while the axle is open
- Replace the pinion nut and crush sleeve during the build
Specifications
| Brand | G2 Axle and Gear |
|---|---|
| Part number | 2-2058-456 |
| UPC | 631410116595 |
| Make | Toyota |
| Axle size | 8 inch |
| Spline count | 29 |
| Gear ratio | 4.56 |
| Warranty | 10 years, per G2 |
Vehicle fitment
The title names a Toyota 8 inch, 29 spline axle with no model or years, so the vehicle is not confirmed. Check the application before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Match the 29 spline count to the axle before buying, and set pinion depth and preload when the carrier is assembled.
What’s included
One ring and pinion set, as titled.
