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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
  • Two-Piece Clamping Motor Mount
  • Innovative Front-End Geometry With 8-Degree Blocks
  • Wing Mount Features Adjustable Wing Angle Shims
  • Includes Updated Gear Box

Legacy RC8T4e Features

  • RC8T4e chassis layout featuring two saddle pack-style battery configurations. Both configurations include a centrally mounted center differential and in-line center driveshafts for superior drivetrain efficiency and equalized chassis balance.
  • Four battery configurations to choose from: –Two 2S shorty LiPo batteries for lowest CG and exceptional weight bias –Two full size ??saddle pack?? LiPo batteries for lowest CG and exceptional weight bias –One 4S shorty LiPo battery for simplified setup and more centralized weight bias –One full size LiPo battery for simplified setup and more centralized weight bias.
  • 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.
  • RC8T4e 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.
  • V2 front shock tower design with updated suspension geometry and body mount positions for all styles of truck bodies.
  • Front and rear center dogbone driveshafts for improved drivetrain efficiency and durability.
  • Front upper suspension arm 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.
  • +2 mm and +4 mm shock rod ends for finer adjustment of droop and up-travel settings.
  • 35.5 mm front and 44.5 mm rear shock shafts for improved dampening
  • RC8B4 rear hub features a symmetrical left and right common design with axle height inserts for adjustable roll center tuning options.
  • +2-degree steering block arm.
  • V3 differentials with HTC gear sets.
  • RC8T3.2 split center diff mounts with aluminum center top plate.
  • 16mm shocks equipped with improved material locking spring cups and rod ends, V2 springs, ??stiff?? style shock bladder, combination bleeder/emulsion caps, and blue aluminum threaded collars.
  • RC8B3.2 narrow C and D arm mounts.

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

Updated front and rear gearbox designs are engineered for better drivetrain efficiency.

Chassis layout features double battery configuration

Chassis Layout

Chassis layout features saddle pack-style battery configuration for two 2S shorty batteries or one 4S shorty battery.

Drive-train includes dogbone driveshafts

Drive-Train

Front and rear dogbone driveshafts for improved drive-train efficiency and durability.

Shock towers have an updated design

Shock Towers

Updated front shock tower design and body mount positions for all styles of truck bodies.

Motor is mounted using a two-piece clamping system

Motor Mount

Two-piece clamping motor mounts make for easy and secure gear mesh adjustments.

16mm  aluminum shocks features improved plastic materials

Shocks

16mm shocks equipped with improved material locking spring cups and rod ends.

Front-end geometry with 8-degree steering blocks

Front-End Geometry

Innovative front-end geometry with 8-degree steering blocks.

Updated suspension arms for better performance

Suspension Arms

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

Specs

Product Specs

Battery
Sold Separately
Body
Sold Separately
Charger
Sold Separately
Chassis
Aluminum Chassis
Completion Level
Kit
Differential
Gear Diffs
Drive Type
Forward/Brake/Reverse
Drivetrain
4WD
Manufacturer #
80952
Power Type
Electric
Product Length
22.05″ (560 mm)
Radio
Sold Separately
Receiver
Sold Separately
Scale
1/8
Servos
Sold Separately
Shock Type
Aluminum Shocks
Suspension
Independent
Vehicle Type
Truggy
Weight 5 kg