SKU: 13318372830

Boom Racing Heavy Duty Keyed Bevel Helical Underdrive Gear 33/8T + Differential Locker Set for BRX70/BRX80/BRX90 PHAT & AR44/45/Capra Axles

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Description

Boom Racing Heavy Duty Keyed Bevel Helical Underdrive Gear 33/8T + Differential Locker Set for BRX70/BRX80/BRX90 PHAT & AR44/45/Capra AxlesPRODUCT INFORMATION: Introducing the strongest AR44 AR45 axle gears to date: Keyed Underdrive 33 8T HD Helical Bevel Gears + Differential Locker Set for AR44 AR45 housings #BR955042. The SCX10 II stock axle gears are known to be a weak point in the housing. After releasing the popular Keyed 27 8T Overdrive Hardened Steel Gears, requests were sent in for underdrive gears. So YOU asked, and we listened! Here is the new heavy duty underdrive 33 8T

PRODUCT INFORMATION:

  • Introducing the strongest AR44/AR45 axle gears to date: Keyed Underdrive 33/8T HD Helical Bevel Gears + Differential Locker Set for AR44/AR45 housings #BR955042.

    The SCX10 II stock axle gears are known to be a weak point in the housing. After releasing the popular Keyed 27/8T Overdrive Hardened Steel Gears, requests were sent in for underdrive gears. So YOU asked, and we listened!

    Here is the new heavy-duty underdrive 33/8T helical bevel gear & diff locker set.
    Designed for the AR44/AR45/Capra Currie F9 Axle Housing, Boom Racing AR44 PHAT Axle Housing or the BRX70/BRX80/BRX90 PHAT Axles.

    Use this gear to improve the performance of your crawler. Run them in the rear axle for a slower wheel speed in the rear tires. Underdrive gears help to steer in sharp turns like how a dig does and slower wheel speed in the back with higher torque output.

    Features:
    Underdrive gears create slower wheel speed for rear wheels to help steering with higher torque output
    Hardened steel gears for maximum strength and durability
    Keyed spool to increase structural strength and to eliminate the weakness of the M2 screws
    Tight tolerance of the diff locker and the axle shaft
    Tight tolerance of the bevel gear and input shaft to increase efficiency in the drivetrain

    Fits:
    Boom Racing BRX70 PHAT Axle
    Boom Racing BRX80 PHAT Axle
    Boom Racing BRX90 PHAT Axle
    Boom Racing PHAT AR44 Axle (BR955015)
    Axial AR44 Axle
    Axial AR45 Axle
    Axial Currie F9 Portal Axle

    Includes:
    1x Keyed Heavy Duty Bevel Gear 33T
    1x Heavy Duty Input Shaft 8T
    1x Keyed Differential Locker (Spool)
    3x M2 hardware
    4x 1mm washer

    This product will only fit one axle housing.

    Replacements are available:
    Diff Lock Spool

  • Package total weight: 36.00 grams (incl. packaging)
  • Factory description: Boom Racing Heavy Duty Keyed Bevel Helical Underdrive Gear 33/8T + Differential Locker Set for BRX70/BRX90/AR44 Axles
  • Manufactured by Boom Racing
  • Manufacturer number: BR955042
      Shipping Notes
      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
      1. Standard Shipping : 3-10 business days
      • If time is of the essence, please consider selecting expedited delivery for faster service.
      Exchange/Return Notes
      • We offer a 30-day return/exchange service after receiving.
      • Final sale items are not eligible for returns or exchanges.
      • To process your return/exchange, please contact us at [email protected]
      • Please click here for more details>>> Return & Exchange Policy
      SKU: 13318372830

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      Daniel Lucarell
      Phoenix, US
      ★★★★★ 5
      Most comfortable shoes, right out of the box!
      Size: 8.5, Color: Cognac Napa Leather
      Oh my! So, my ordering of shoes online has been hit or miss - 1/2 size too big or too small; too wide or not wide enough. Enter these Marc Joseph shoes… such a game changer. They fit like a glove, exceptionally comfortable, and easy to slip in and out of. I like them so much that I am shopping for another pair. So far, the size, quality, fit, feel, look, and comfort make this pair my dedicated first pick. Btw, I have been wearing them for six hours and they are still very comfortable! I highly recommend these shoes.
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      Reviewed in the United States on September 28, 2025
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      Heydi Ortega
      Los Angeles, US
      ★★★★★ 5
      Me gustaron
      Size: 9.5 Wide, Color: Black
      Llego exactamente la talla que pedí, son como se ven en la foto!
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      Reviewed in the United States on June 3, 2026
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      Michael
      Carnegie, US
      ★★★★★ 5
      Comfortable dress shoe.
      Size: 7, Color: Brown Napa Leather
      Finally a comfortable dress shoe. It's both comfortable to walk in and looks and wears like a more traditional dress shoes for the office.
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      Reviewed in the United States on May 6, 2026
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      Christopher
      Belleville, US
      ★★★★★ 5
      Slip-on ready and great quality
      Size: 9, Color: Black
      These shoes were stuff for the first half hour but then feel great. Well worth the chance and money. Great quality and slip-on easy
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      Reviewed in the United States on May 22, 2026
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      Derek Preston
      Port Orchard, US
      ★★★★★ 5
      Great buy
      Size: 11, Color: Tan
      Great fit comfortable look good
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      Reviewed in the United States on May 12, 2026

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