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Fusion Elite Series Fabricated 9"/10" Front Builder Kit

Sku: FUS-KP609-FB

Part Number: FUS-KP609-FB
Brand: Fusion

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

Fusion Elite Series Fabricated 9"/10" axle. If you're looking for lighter and stronger, maximum ground clearance, and the some of the best parts the industry has to offer, then this is the axle for you! Add one of our Elite Series or Pro Series 3rd members and you are ready to race at King of the Hammers or have one of the baddest street rigs around. Call or email with specs on width, pinion offset, and caster/pinion separation.

Package includes:

  • Fabricated housing
  • Fusion HD kingpin inner Cs, USA forged out of high quality alloy steel and comparable in strength to other leading aftermarket options - kingpin cones installed
  • Fusion HD kingpin knuckles, cast in the USA, available in Chevy/Dodge or Ford (Chevy/Dodge is recommended unless you are reusing Ford parts) - knuckles are designed for 6 ARP studs


  • Fusion 1480 Forged Chromoly Axle Shafts with U-Joint options
  • Kingpin component kit, INCLUDES: all parts to assemble kingpin knuckles, except the spring and cap (Fusion steering arms are springless and come with preload hardware, which is everything else needed to fully assemble knuckles and steering arms)
  • Complete Roller Assembly: spindles, hubs, hardware, wheel studs, bearings, races
  • Complete Brake kit (Calipers, Rotors, Pads, Caliper Bolts), with upgrade options
  • Fusion Drive Flange Kit or locking hubs
  • Steering arms and hardware
  • Labor to Assemble

Call or email with your specs. 6 week lead time with option for rush production.

Why a 9" housing?

  • Better ground clearance than a D60
  • Lighter than a traditional housing
  • All steel, so you can weld anywhere on the housing
  • Dropout third member making gear swaps or service easier

Housing details:

  • 3.5" diameter tubes with 3/8" wall thickness
  • Precision welded and perfectly straight
  • Works with 10" ring gears and with low pinion and high pinion third members
  • Available in custom widths and with driver drop, passenger drop, or centered

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