SKU #: YUK-YA GM11.5-30-40.25 MPN #: YA GM11.5-30-40.25

Yukon Chromoly 30 Spline GM 11.5 Rear Axle 11-18 GM 2500/3500

$365.89
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Description Overview
Whether you use your truck for towing or racing at the track, the Yukon Chromoly replacement axle shaft is the perfect upgrade for your GM truck that takes abuse. This axle is a direct replacement for GM part number 20920663 and features long splines it can be cut to length. Designed for abuse, the chromoly construction is far stronger than the factory material. 

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The Yukon Chromoly 30 Spline replacement rear axle shaft upgrades factory axles with stronger 4340 chromoly construction for trucks under heavy abuse.

Fits
2011-2018 GM 6.6L 2500HD/3500HD
Brand
Yukon Gear & Axle
Best for
Towing or track use requiring a stronger rear axle shaft
Key features
  • Direct replacement axle shaft
  • 4340 chromoly construction, stronger than factory material
  • Long splines allow cutting to length
  • Direct replacement for GM part number 20920663
Key specs
  • 4340 Chromoly
  • 30 Spline
  • Covers lengths from 35" to 40.25"
  • For GM 11.5" axle

Summarized by AI from this product’s description and specs. Confirm fitment for your year, make and engine before ordering.

Whether you use your truck for towing or racing at the track, the Yukon Chromoly replacement axle shaft is the perfect upgrade for your GM truck that takes abuse. This axle is a direct replacement for GM part number 20920663 and features long splines it can be cut to length. Designed for abuse, the chromoly construction is far stronger than the factory material. 
Vehicle Fitment
2011-2018 GM 6.6L 2500HD/3500HD
WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov
FEATURES & BENEFITS:
  • Replacement Axle
  • 4340 Chromoly
  • Covers lengths from 35" to 40.25".
  • For 2011 & Up GM 11.5"
TECHNICAL NOTE:
  • Direct replacement for GM 20920663. Long spline length can be cut to fit 35"-40.25" length. 4.760" flange OD
About Yukon Gear & Axle
Yukon Gear & Axle's mission is to build quality parts that exceed expectation. Its that simple! Their in-house engineering group utilizes state-of-the-art software to design product thats then manufactured in partnership by some of the worlds foremost leaders in OEM manufacturing. Whether you're in need of a ring and pinion set to regear your truck after installing larger tires, a locker to aid in traction, or a set of chromoly axle shafts, Yukon's got you and your rig covered.