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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Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

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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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      Book dude
      Omaha, US
      ★★★★★ 4
      Runs tight. Skinny and smaller than other brands.
      Size: 8.5, Color: Brown
      Comfy and lots of support. Cushiony. Beware: the brown I ordered runs small. Tighter than other brands.
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      LATASHA JORDAN
      Belleville, US
      ★★★★★ 5
      Nice
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      Very comfortable. Worth the money
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      YWC
      Waukegan, US
      ★★★★★ 1
      Leather peels right off
      Size: 8, Color: Black
      Very poor quality - shoes are ruined after a couple months
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      Reviewed in the United States on May 28, 2026
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      Blackqueen30
      Alexandria, US
      ★★★★★ 5
      Good purchase
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      Value and quality was good
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      Cuba, US
      ★★★★★ 5
      Comfortable
      Size: 7, Color: Black
      Super comfy and stylish, I’ve never worn these styles of loafers however I’m glad I purchased these. I’ve purchased another pair in a different color.
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      Reviewed in the United States on April 14, 2026

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