PRODUCT INFORMATION:

• Upgrade your drivetrain with the Boom Racing 33T/8T Reverse HD Keyed Helical Bevel Underdrive Gear Set, engineered for strength, durability, and reliable power delivery in demanding RC crawling conditions.
  
  Featuring a 33-tooth ring gear and 8-tooth pinion, this underdrive gear set delivers a 4.125:1 axle reduction ratio, providing approximately 9.1% slower axle rotation compared to standard 30T/8T gearing.
  
  Unlike conventional gear sets with a circular centre interface, our triangular keyed design provides positive mechanical engagement between the ring gear and a compatible keyed differential locker. This improves torque transfer, helps distribute rotational loads, and reduces reliance on mounting screws alone to resist rotational forces.
  
  The reverse-cut helical bevel gear design is intended for smooth gear engagement and dependable performance under load.
  
  Features:
  • Reverse-cut 33T/8T underdrive gear configuration
  • Triangular keyed center design for improved torque transfer
  • Heavy-duty steel construction
  • Helical bevel gear design for smooth engagement
  • Designed for compatible AR44/AR45 differential gear applications
  • Ideal for underdrive setups with counter-rotating front and rear axle drivetrains
  
  Specifications:
  
  • Gear Ratio: 33T/8T (4.125:1)
  • Gear Type: Reverse-cut helical bevel
  • Material: Hardened Gear Steel
  • Ring Gear Interface: Triangular keyed design
  • Gear Configuration: Underdrive
  • Differential Rotation: Reverse
  
  Compatible:
  • Boom Racing BRX PHAT Rear Axles
  • AR44/AR45 Differential Gear-Compatible Axles (with matching keyed locker and reverse-cut configuration)
  
  Includes:
  • Bevel and helical gear components
  • Mounting screws shown
  • Shim for adjustments
• Package total weight: 36.00 grams (incl. packaging)
• Factory description: Boom Racing 33/8T Reverse HD Keyed Bevel Helical Underdrive Gear Set
• Manufactured by Boom Racing
• Manufacturer number: BR955043