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Overview

RC8T4 series Gearbox Upgrade!

The upgraded 40/9 ring and pinion are completely re-designed with massive teeth which allow for more tooth engagement and prevent skipping. In addition, the RC8B4 front and rear gearboxes are updated for the tightest possible screw and bearing fit using high stiffness polymer. Team Associated driver Spencer Rivkin used the new parts win the 2024 ROAR Electric Truck National Title with his RC8T4e, never having to worry about the durability of his truck gearboxes while he pushed it to the max on track.

  • 7075 Aluminum Hard Anodized Chassis
  • Updated Fuel Tank With An Ergonomically Designed Lid Puller
  • Innovative Front-End Geometry With 8-Degree Blocks
  • Wing Mount Features Adjustable Wing Angle Shims
  • Includes Updated Gear Box

Legacy RC8T4 Features

  • Innovative front-end geometry with new 8° steering blocks are paired with a new wider upper suspension arm pivot for improved steering balance and predictable handling in all conditions.
  • RC8B4 front and rear gearbox designs are engineered for better drivetrain efficiency with reduced phasing and vibration. Larger bearing sizes result in longer life of ring and pinion gears.
  • V2 front shock tower design with updated suspension geometry and body mount positions for all styles of truck bodies.
  • RC8B4 gray material on rod ends and anti-roll bar links for improved durability.
  • RC8B4 +2 mm and +4 mm shock rod ends for finer adjustment of droop and up-travel settings.
  • Front upper suspension arms updated to have bushing insert for improved fitment and performance.

  • RC8B4 rear wing mount has adjustable wing angle shims, significant strength improvements, an aerodynamic shape, and extra clearance for shock position adjustment.
  • The adjustable rear wing has more vertical fins for increased straight-line stability, a taller rear lip height for increased downforce, and increased strength in various areas to reduce bending fatigue.
  • RC8B4 rear chassis brace is mounted centrally to the gearbox, which reduces material fatigue, centralizes shear forces, and improves the life of rear end drivetrain parts. There are three different chassis flex options using two chassis hole mounting locations and an optional turnbuckle ball for flex in more degrees of freedom.
  • RC8B4 rear hub features a symmetrical left and right common design with axle height inserts for adjustable roll center tuning options.
  • Fuel tank with an ergonomically designed lid puller, high capacity, quick reference fuel markings, and 1-, 2-, and 3cc stackable volume inserts for volume adjustment at sanctioned events.
  • RC8B4 gearboxes are specific to front and rear with larger bearing sizes resulting in longer life of ring and pinion gears: Front gearbox is a 3.5° inclined pinion gear angle to straighten the center driveshaft for increased drivetrain efficiency and reduced phasing and vibration. Rear gearbox is a 0° pinion gear angle and a center mounted rear chassis brace.

Wing has vertical rear fins and a taller rear lip

Rear Wing

Wing has vertical rear fins and a taller rear lip for increased straight-line stability and down-force.

Wing mount is adjustable

Wing Mount

Wing mount features adjustable wing angle shims, strength improvements, and aerodynamic strength.

Centrally mounted chassis brace

Chassis Brace

Rear chassis brace is mounted centrally to the gearbox, which reduces material fatigue.

Front and rear gear boxes are more efficient

Gear Boxes

Front and rear gearbox designs are engineered for better drivetrain efficiency.

Chassis is made from aluminum and anodized gold

Aluminum Chassis

7075 aluminum hard anodized chassis creates optimum weight balance.

Black plastic is improved

Improved Material

Material on rod ends and anti-roll bar links improved for durability.

Some parts are made from carbon fiber

Carbon Fiber Parts

Carbon fiber front top plate centralizes the front chassis brace for balanced flex in all directions.

Ergonomically designed fuel tank

Fuel Tank

Fuel tank with an ergonomically designed lid puller, high capacity, quick reference fuel markings.

Shock towers have an updated design

Shock Towers

Updated front shock tower design with updated suspension geometry and body mount positions.

Updated suspension arms for better performance

Suspension Arms

Front upper suspension arms updated to have bushing insert for improved fit and performance.

Updated front-end geometry

Front-End Geometry

Innovative front-end geometry with 8-degree blocks.

Specs

Product Specs

Battery
Sold Separately
Body
Clear Polycarbonate
Charger
Sold Separately
Chassis
Aluminum Chassis
Differential
Gear Diffs
Drive Type
Forward/Brake/Reverse
Drivetrain
4WD
Manufacturer #
80951
Motor Size
1/8 .21 Class Rear Exhaust Nitro Motor
Power Type
Nitro
Product Length
22.05″ (560 mm)
Radio
Sold Separately
Receiver
Sold Separately
Scale
1/8
Servos
Sold Separately
Shock Type
Aluminum Oil Shocks
Suspension
Independent Suspension
Vehicle Type
Truggy
Wheelbase
15″ (381 mm)
Weight 5 kg