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4340 Chromoly Outer Axle, Dana 44 w/Disc Conversion, 66-77 Ford Bronco SKU: 8691

4340 Chromoly Outer Axle, Dana 44 w/Disc Conversion, 66-77 Ford Bronco

4340 Chromoly Outer Axle, Dana 44 w/Disc Conversion, 66-77 Ford Bronco

Purchase 4340 Chromoly Outer Axle, Dana 44 w/Disc Conversion, 66-77 Ford Bronco
$109.99 SKU: 8691

Fits 66-77 Ford Bronco
1 Reviews

Product Overview:

Axles are only as strong as their weakest link—don’t let yours be the outer stub. This 4340 Chromoly Dana 44 Outer Stub Axle is engineered for Broncos and off-road builds running GM-style front disc brakes, offering up to 50% more strength than factory shafts. With full snap ring grooves (not weak C-clips) and compatibility with 1.189" O.D. U-joints, this axle is a serious upgrade for anyone pushing their rig beyond the pavement. Whether you’re crawling rocks or hammering down back roads, this is the kind of strength you want out front.

For use with 4340 Chromoly Inner Axles & Spicer 760X u-joints.

Full description

Axles are only as strong as their weakest link—don’t let yours be the outer stub. This 4340 Chromoly Dana 44 Outer Stub Axle is engineered for Broncos and off-road builds running GM-style front disc brakes, offering up to 50% more strength than factory shafts. With full snap ring grooves (not weak C-clips) and compatibility with 1.189" O.D. U-joints, this axle is a serious upgrade for anyone pushing their rig beyond the pavement. Whether you’re crawling rocks or hammering down back roads, this is the kind of strength you want out front.

For use with 4340 Chromoly Inner Axles & Spicer 760X u-joints.


4340 Chromoly Dana 44 Outer Stub Axle for GM Disc Brakes

Replace a damaged stub axle with this 4340 Chromoly Dana 44 Outer Stub Axle, specifically designed for GM-style front disc brake conversions. Built to outperform factory axles, this outer stub is made from premium 4340 chromoly for increased durability and resistance to breakage under high-stress conditions. Whether you’re wheeling hard, building a high-horsepower Bronco, or just want added insurance on the trail, this axle delivers unmatched strength and reliability where it counts most.

Must be used with Chromoly Inner Axles that use Spicer 760X u-joints.


  • 4340 Chromoly Construction: Up to 50% stronger than stock axles—perfect for hardcore off-road use.

  • Built for GM Disc Brakes: Designed to fit Dana 44 front ends running a GM-style disc brake conversion.

  • Full Snap Ring Grooves: Machined for full snap rings—not the weak C-clips that tend to fail under pressure.

  • Oversized U-Joint Caps: Accepts 1.189" O.D. U-joints for added strength (stock Bronco caps measure 1.063").

  • Extreme Duty Upgrade: Ideal for rock crawling, trail abuse, or performance-driven drivetrain builds.

  • Long-Lasting Performance: Heat-treated and precision-machined for consistent strength and extended life.


Take your front axle to the next level—this 4340 Dana 44 stub shaft adds up to 50% more strength and fits GM disc conversions. Built for serious off-road use.

Review 4340 Chromoly Outer Axle, Dana 44 w/Disc Conversion, 66-77 Ford Bronco

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PRODUCT REVIEWS
Al Glaessmann
Reviewed 08/31/2022
Arrived as scheduled and met all expectations!

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