Yukon Gear 4340 Chrome Moly Rear Axle For GM 10.5in 14 Bolt Truck 30 Spline

Yukon Gear 4340 Chrome Moly Rear Axle for GM 14-Bolt 30-Spline 31 to 35-Inch Cut-to-Fit

The YA WGM14T-30-35 from Yukon Gear and Axle is a 4340 chrome moly rear axle shaft engineered for the GM 10.5-inch and 11.5-inch 14-bolt full-float rear differential with a 30-spline count. This cut-to-fit axle accommodates lengths from 31 to 35 inches and is designed for Chevrolet Silverado 2500HD, Silverado 3500, Suburban 2500, and GMC Sierra 2500HD and Sierra 3500 trucks from 2001 through 2014. The YA WGM14T-30-35 uses 4340 chrome moly alloy steel, which delivers significantly higher strength and impact resistance than the factory 1040 steel axle, making it the right choice for high-horsepower builds, heavy towing, and aggressive off-road use. Yukon precision-machines the spline and flange ends of the YA WGM14T-30-35 for a secure fit in GM 14-bolt housings, and backs it with a limited lifetime warranty.

Key Features and Benefits

• 4340 Chrome Moly Steel: Substantially stronger than factory 1040 steel axles for high-torque and off-road demands
• 30-Spline Design: Matches the GM 10.5-inch and 11.5-inch 14-bolt full-float carrier exactly
• Cut-to-Fit Length: Adjustable from 31 to 35 inches to accommodate your specific housing dimensions
• 8 x 3.562-Inch Bolt Circle: Standard bolt pattern for most GM 14-bolt applications; verify on 2011-and-newer models
• Full-Float Compatible: Designed for full-float rear axle housings in GM heavy-duty trucks
• Limited Lifetime Warranty: Yukon stands behind the YA WGM14T-30-35 for the life of your ownership
• Precision Machined: Tight tolerances ensure proper spline engagement and reliable torque transfer

Fitment

Specs

What Is Included

• One 4340 chrome moly rear axle shaft cut-to-fit 31 to 35 inches

Frequently Asked Questions

• Q: What differential does the YA WGM14T-30-35 fit?
  A: The YA WGM14T-30-35 fits the GM 10.5-inch 14-bolt full-float rear differential in 2001 through 2006 Silverado 2500HD, Silverado 3500, and Sierra 2500HD and Sierra 3500, and the 11.5-inch 14-bolt in 2007 through 2014 Silverado 2500HD, Silverado 3500HD, Sierra 2500HD, and Sierra 3500HD.
• Q: How do I determine the correct cut length?
  A: Remove your existing axle shaft and measure from the end of the splines to the outer flange face. Cut the YA WGM14T-30-35 to match that dimension, staying within the 31-to-35-inch range.
• Q: Does this axle shaft come in a pair?
  A: No. The YA WGM14T-30-35 is sold as a single axle shaft. Order two if replacing both sides.
• Q: Why choose 4340 chrome moly over the factory axle?
  A: Factory GM 14-bolt axles use 1040 steel. The YA WGM14T-30-35 uses 4340 chrome moly alloy, which delivers significantly higher tensile strength and torsional fatigue resistance, especially important for high-horsepower or heavily loaded truck applications.
• Q: Can installing aftermarket axles affect my factory warranty under Magnuson-Moss?
  A: The Magnuson-Moss Warranty Act requires the dealer to prove the YA WGM14T-30-35 directly caused the failure before denying your drivetrain warranty claim.
• Q: What bolt pattern does this axle use?
  A: The YA WGM14T-30-35 uses an 8 x 3.562-inch bolt circle, which is standard for most GM 14-bolt full-float applications. Verify the bolt pattern on 2011-and-newer models as some use a larger bolt circle.
• Q: What warranty is included with the YA WGM14T-30-35?
  A: Yukon backs the YA WGM14T-30-35 with a limited lifetime warranty against manufacturing defects.
• Q: Is professional installation recommended?
  A: Full-float axle shaft installation is straightforward for experienced mechanics, but cutting the axle to length requires accurate measurement and a proper metal saw. Professional installation is advised to ensure correct length and proper seating of the flange.

Installation Instructions

1. Safely lift and support the rear of the vehicle. Chock the front wheels.
2. Remove the rear wheel and the axle flange bolts retaining the factory axle shaft.
3. Slide the old axle shaft out of the full-float housing.
4. Measure the old axle from end to end and record the length.
5. Mark the YA WGM14T-30-35 at the required cut length and cut with a quality metal saw.
6. Deburr and chamfer the cut end lightly to aid seating in the housing.
7. Slide the new axle shaft into the housing, aligning the splines with the side gear.
8. Install flange bolts and torque to factory specification in a star pattern.
9. Reinstall the wheel and torque lug nuts to specification.
10. Repeat on the opposite side if replacing both axle shafts.
11. Inspect differential fluid level and top off if needed.
12. Perform a short test drive to verify no noise or vibration before returning to normal use.

Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.