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Fusion Super Kingpin Big Tube 14 Bolt Axle

Sku: FUS-SKP14

Part Number: FUS-SKP14
Brand: Fusion

For current axle lead times and shipping details:  See this page

Fusion Super Kingpin Big Tube 14 Bolt complete assembly. Brand NEW 14 Bolt casting utilizing 4" diameter axle tubes.

Please call or email us with your specs: width, drop, offset, caster/pinion separation. If you have a reference axle, that makes it even easier (e.g. 78-79 Ford Sno Fighter).

Axle will accommodate up to 1550 axle shafts and Big Bell RCVs.      

All tubes are cut to length and machined in-house. Assemblies are pressed together, plug welded, and then 360 welded to the cast and C's using a semi-automated welding process to ensure high quality welds that look bad ass. We use only USA made and sourced DOM for our tubes.

Included in Base Price:

  • Brand NEW, not re-tubed, 14 Bolt differential Casting
  • 4" diameter DOM axle tube
  • Tubes pressed and welded in. Tubes are plug welded and also 360 degree welded to the cast and inner C's
  • Reid Racing Super Kingpin inner C's and Outer Knuckles, with Kingpin cones installed

Options Include (if you don't see it, ask, we likely have it):

  • All Kingpin Components (for springless setup)
  • 14 Bolt Ring & Pinion
  • Master Install Kit
  • Traction
  • Pinion Yoke
  • 30, 35 or 40 spline 1550 axle shafts
  • Drive Flange Kit or locking hubs
  • Complete Ford F250/F350 Brake kit (Calipers, Rotors, Pads, Caliper Bolts)
  • Timken unit bearings that are double drilled for 8x170 and 8x6.5 (includes 14mm studs)
  • Machined steering arm kit
  • Diff cover and shave options

What makes the Super Kingpin so great?

  • It's big, really f-ing big
  • Kingpin assembly, which means no ball joints to replace or wear out
  • Utilizes the stout Dana 60/70 upper and lower kingpin assemblies for the utmost in strength
  • 1.5″ increased yoke spread allows fitment of 1480, 1550, and Rockwell 2.5-ton U-joints and a greater load carrying capacity
  • Uses OEM 2005-present Ford Superduty unit bearings, lockout hubs, stub shafts, U-joints, and 2005-2012 calipers and rotors
  • Outer stub shafts can be oversized to directly engage the unit bearing’s 2.5-inch hub splines when the lockout components are removed
  • Flat-top pad machined for 6 ARP high steer studs, allows for aftermarket steering arms that provide a wide range of steering options
  • Knuckles cast from high-strength ductile iron and beefed up with extra material and ribbing
  • Cast-in steering arms tapered from the top down for standard “1-ton” tie rod ends; extra-wide arms allow the tie rod holes to be drilled out for oversized bolts, heim joints, etc. Extended arms allow a straight tie rod to clear most differential covers
  • 100% Made in the USA

Optional Next Generation Rear 40 Spline Assembly.18 months of design, engineering and testing, resulted in the industries strongest 40 spline rear assembly. The design completed rigorous FEA testing and analysis.
- Forged chromolyspindles, hubs, and axle shafts
- Forged spindles have 4x more yield strengththan 35 spline spindles
- Hubs with over 80,000 psi yield strength to match the spindles
- Tone rings integrated into the hub
- Forged 4340 chromoly 40 spline axle shafts that are 55% strongerthan 4340 35 spline axle shafts

Fusion Elite Kingpin 60 Front Axle Standard Features:

  • 72" width for ideal steering geometry and tire clearance when running 40" tires. Other width available or call for custom width.
  • High clearance center section with custom low profile fabricated differential cover
  • Genuine Made in the USA Spicer® 10.1" (256 mm) ring and pinion gear
  • 3.5" diameter x 7/16" wall axle tubes
  • Lifetime Warranty US Made Chromoly axle shafts with 1480 solid u-joints
  • Massive, race inspired Kingpin inner knuckle Cs and outer knuckles, no ball joints to wear out
  • Fully machined springless steering arm attached with 6 ARP Studs
  • Steering arm upgrades available for full hydro or virtually any application
  • 1/4" plate axle bracketry designed to be the strongest in its class
  • 8 x 6.5 bolt pattern
  • Massive 13.25" brake rotors and dual piston calipers
  • Yukon Hardcore locking hubs