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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      4.3 ★★★★★
      Based on 10 reviews
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      Rhonda
      Grantham, US
      ★★★★★ 5
      Good cart.
      Size: 5 Tiers (8.7"D x 39.2"H), Color: Rustic Brown + Classic Black
      Very good cart. Could use better wheels, but all in all nice looking cart. Wish it came with a-hooks so you could hang pot holders or something of the like on the end b horizontal bars, but it does NOT.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on April 24, 2026
      S
      Verified Purchase
      Savvy Shopper
      Lake Worth, US
      ★★★★★ 5
      Nice Versatile and Strong Cart
      Material Type: Three Tiers Cart
      The cart looks great and fits our needs perfectly. It is very sturdy and well made. However, it took a lot longer to put together than I expected because there many parts and they have to fit together perfectly. Worth it though!
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on November 23, 2025
      A
      Verified Purchase
      Anastasio Sarigiannis
      Lake Worth, US
      ★★★★★ 5
      Not for someone that needs step by step instructions and pre-drilled holes
      Nice cart that looks good once assembled. But be warned: there are NO predrilled holes for any of the screws. You will need to build each section of the frame that attaches to each wood panel FIRST, sit it on the wood and use a electric drill or driver to put the screws into the wood. Same goes for the wheel attachments - no holes drilled for these either. So if you are someone that can't even build a piece of IKEA furniture - this is NOT for you as this will require more skill and power tools.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on July 28, 2021
      A
      Verified Purchase
      Amazon Customer
      Houston, US
      ★★★★★ 4
      Great Cart, Difficult Assembly
      Material Type: Three Tiers Cart
      This cart is beautiful and met our expectations. We read many reviews good and bad, so we knew what we were buying. The cart was packaged and delivered perfectly. It is very heavy so help may be needed. It took 4 hours to put together, there were no predrilled holes and some of the metal poles need to be adjusted slightly to fit correctly. The instructions were straightforward, drilling holes prior is very helpful. The wood was a darker brown and I actually liked the imperfections of the knots giving it character. Overall, I would buy this cart again. It is very pretty and will look amazing in our camp.
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      Reviewed in the United States on April 1, 2025
      P
      Verified Purchase
      Pamela J Arrowood
      Whiting, US
      ★★★★★ 5
      Works great
      Material Type: Three Tiers Cart
      Easy assembly. Perfect for moving around bar area. Rolls nicely. A lot of room..
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 9, 2026

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