Yukon Dana 60 & 70 12" Front Outer Axle - 35-Spline, 4340 Chromoly
YUKYA W46100
This Yukon 4340 chromoly front outer axle shaft for Dana 60 and Dana 70 axles is built for maximum strength and durability in extreme off-road and high-performance applications. Designed to handle increased torque loads, larger tires, and aggressive driving, it delivers a significant upgrade over factory axle shafts.
Manufactured using high-tensile 4340 chromoly, this axle features cold roll formed splines and advanced induction heat treating for superior fatigue resistance and long-term reliability. Precision machining ensures proper fitment, making it an ideal solution for rock crawlers, race vehicles, and heavy-duty trail rigs.
Includes:
- (1) 4340 chromoly front outer axle shaft
Specifications
- Fits Dana 60 and Dana 70 front axles
- 35-spline configuration
- 12" overall length
- Front outer axle shaft
- 4340 chromoly construction for maximum strength
- Cold roll formed splines for increased durability
- Induction heat treated for improved fatigue resistance
- Compatible with 5-332X series u-joint
- P/N: YA W46100
Fitment
| Make | Model | Year Range |
|---|---|---|
| Chevrolet | K30 | 1977–1986 |
| Chevrolet | V30 | 1987–1988 |
| Dodge | W200 | 1979–1980 |
| Dodge | W250 | 1981–1993 |
| Dodge | W350 | 1981–1993 |
| GMC | K35 | 1977–1978 |
| GMC | K3500 | 1979–1986 |
| GMC | V3500 | 1987 |
Tech Insight
4340 chromoly axle shafts are widely used in high-performance and off-road applications due to their superior tensile strength and resistance to twisting under load. Compared to factory shafts, chromoly significantly reduces the risk of failure when running lockers, large tires, and increased horsepower.
Cold rolled splines improve strength by preserving and compressing the grain structure of the material, while induction heat treating enhances durability in high-stress areas. For serious builds, upgrading to a chromoly outer axle shaft is a key step in improving drivetrain reliability.