Boom Racing Complete Front Assembled BRX80 PHAT™ Axle Set w/ AR44 HD Gears

Regular price $150.00

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  • This is a complete set of assembled BRX80 Scale PHAT Axle Set. The BRX80 pin-to-pin axle width is 162mm or 6.378 inches, which is between the BRX70 and BRX90 axles.

    The BRX80 axle is a performance-based, high mass heavy-duty axle set designed for 1:10 scale RC crawlers and trucks. It can be easily installed in any project build.

    Similar to the BRX70 and BRX90 axles, this latest BRX80 axle is packed with many features; heavy weight for low CG, reversible axle bevel gear positions, optional leaf spring over and under the axle, optional CMS or axle-mounted servo setup, optional behind-the-axle steering, detachable aluminum CNC link mount and third member, adjustable caster angle and more. Comes with heavy-duty steel keyed AR44 axle gears for ultimate strength and durability, an input shaft, and AR44 compatible knuckles.

    Includes red color Diff Cover; optional Black color Diff Cover is available here.

    Includes black color Third Member (fits Reverse AR44 Helical Cut Bevel Gear for running Counter Rotating Center Drive Shafts usually used in the rear axle). Note red color Third Member will not fit Reverse AR44 gear.

    • 162mm pin-to-pin (6.378 inches)

    • High mass heavy-duty performance axle for crawler and truck projects
    • Straightforward solid-axle design and fits easily on many trucks
    • Reversible axle gear in the housing (option to swap gear to the opposite side for counter-rotation setup)
    • Heavy-duty keyed steel AR44 high pinion gear & input shaft
    • High pinion axle setup for better clearance
    • Chassis Mounted Servo (CMS) AND Axle Mounted Servo (AMS) setup option
    • Detachable knuckle lever for Behind-The-Axle steering setup option
    • Standard AR44 knuckle arms are compatible
    • Leaf spring over and under the axle housing option
    • CNC aluminum truss included for 3-Link and 4-Link setup option
    • Adjustable caster angle for additional steering adjustability
    • BADASS HD Steel universal shaft for ultimate durability and strength for the axle drivetrain
    • High steering angle you won't believe its true - over 45 degrees
    • Removable third member for 6x6 pass-thru option
    • Third member high pinion angle for better clearance
    • Counter rotation stainless steel tie rod steering link for quick adjustments
    • Option to shorten and lengthen the axle width with optional c-hubs and universal axle shafts


    You will need:
    • For Axle Mounted Servo setup, the optional aluminum servo mount is needed.
    • For Chassis Mounted Servo setup, a panhard link is needed (as almost every car has a different setup, we leave this part up to you).
    • For Leaf Spring setup, additional optional parts may/may not be needed depending on your setup. Leafs can be mounted directly on top and under the axle.


    Replacement Parts:
    • Brass bushings: #BRLC7022A
    • High-Performance Full Ball Bearings Set for BRX70 / BRX80 / BRX90 Front & Rear PHAT Axles (18) #PHAT7890BBZ

    When you receive the axle:

    Make sure to grease up the axle set. You can fill up the empty space with diff grease surrounding the bevel gear and input shaft.

    The gear positions are factory setup and should be ready to go. Rotate the drivetrain by hand for physical inspection.

    Install spacers accordingly between the center driveshaft and the input shaft to prevent input shaft from unnecessary slop.

    To setup this BRX80 front axle similar to the BRX01 stock axles, these two parts are:
    • Steel Leaf Spring Channel w/ Shock Mount for BRX70 / BRX90 Axle (2) BRLC7002/B
    • Aluminum Knuckle Arm (Low Profile) for BRX70 / BRX90 Knuckle (2) BRLC7010
  • Package total weight: 368.00 grams (incl. packaging)
  • Package size: 9.00 x 24.00 x 7.00cm
  • Factory description: Boom Racing Complete Front Assembled BRX80 PHAT Axle Set w/ AR44 HD Gears
  • Manufactured by Boom Racing
  • Manufacturer number: BRD8022