TRAXXAS Slash 4X4 Front Spiral Differential 37/13 Upgrade - SLA1337FS by GPM  [SLA1337FS]

TRAXXAS SLASH 4X4 20CR Steel Spiral-cut Front Differential Gear 13T/37T - GPM SLA1337FS
Price:
AUD$51.37
Brand:
GPM
Model:
SLA1337FS
GTIN:
4894538401943
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alt="TRAXXAS SLASH 4X4 20CR Steel Spiral-cut Front Differential Gear 13T/37T - GPM SLA1337FS" title="TRAXXAS SLASH 4X4 20CR Steel Spiral-cut Front Differential Gear 13T/37T - GPM SLA1337FS"

Front spiral differential for Slash 4X4

The SLA1337FS spiral-cut front differential gear set from GPM is an aftermarket replacement suitable for TRAXXAS models that used the #5379X/#5379R front diff gear. Cut with helical spiral teeth and made from 20Cr carbon steel with a hardened black finish, this pair is designed to sit in the front gearbox and transfer drive from the motor through the drivetrain.

The set contains a 37-tooth ring gear and a 13-tooth pinion gear matched for correct mesh and spiral direction. Helical geometry smooths tooth engagement and distributes load across multiple teeth which helps maintain consistent drivetrain behaviour during setup and running.

Always confirm your vehicle manual lists TRAXXAS part #5379X or #5379R before installation. Fitting requires front gearbox access and typical gear mesh adjustment; ensure shims and bearings are returned to their correct locations as per the service guide.

Packing includes

  • 37-tooth diff spiral cut ring gear - 1pcs
  • 13-tooth spiral cut pinion gear - 1pcs

Original Name / Part No:

5379X,5379R

Compatible Models

  • TRAXXAS 1/10 SLASH 4X4
  • TRAXXAS-XO-01-64077-3
  • TRAXXAS 1/10 4WD FORD GT 4-TEC 2.0 -83056-4
  • TRAXXAS 1/10 RUSTLER 4X4 VXL-67076-4
  • TRAXXAS 1/10 4WD HOSS 4X4 VXL 3S-90076-4
  • TRAXXAS 1/8 Jato 4X4 VXL-4S-90386-4
  • TRAXXAS 1/10 4TEC 2.0 AWD CHASSIS WITH BRUSHED POWER SYSTEM 83024-4
  • TRAXXAS 1/10 4TEC 2.0 AWD CHASSIS WITH VELINEON BRUSHLESS SYSTEM 83076-4
  • TRAXXAS 1/10 CORVETTE AWD ON-ROAD CAR 93054-4
  • TRAXXAS 1/10 Factory Five '33 Hot Rod Coupe AWD ON-ROAD 93044-4
  • TRAXXAS 1/10 Factory Five '35 Hot Rod Truck AWD ON-ROAD 93034-4
  • TRAXXAS 1/10 RAPTOR PRO 4WD OFF-ROAD TRUCK 101076-4
  • TRAXXAS 1/10 Fiesta ST Rally FORD FIESTA AWD RALLY CAR 74054-4
  • TRAXXAS 1/10 Mustang GT AWD ON-ROAD CAR 83044-4
  • TRAXXAS 1/10 Slash 4X4 Ultimate BRUSHLESS PRO 4WD SHORT COURSE RACE TRUCK 68077-4
  • TRAXXAS 1/10 Slash 4X4 VXL 4WD BRUSHLESS SHORT-COURSE TRUCK 68086-4
  • TRAXXAS 1/10 Stampede 4X4 VXL 4WD BRUSHLESS MONSTER TRUCK 67086-4
  • TRAXXAS 1/10 Toyota GR Supra GT4 AWD ON-ROAD CAR 93064-4
  • TRAXXAS 1/10 Rustler 4X4 STADIUM TRUCK 67064-1
  • TRAXXAS 1/10 Rustler 4X4 STADIUM TRUCK 67064-61
  • TRAXXAS 1/10 Slash 4X4 SHORT COURSE TRUCK 68054-1
  • TRAXXAS 1/10 Slash 4X4 SHORT COURSE TRUCK 68054-61
  • TRAXXAS 1/10 Stampede 4X4 4WD MONSTER TRUCK 67054-61
  • TRAXXAS 1/10 BIGFOOT 4X4 BL-2S-67134-4
  • TRAXXAS 1/10 Ford Fiesta ST BL-2S-74154-4
  • TRAXXAS 1/10 Ford Fiesta ST Rally VXL-74276-4
  • TRAXXAS 1/8 Jato 4X4 BL-2S-90154-4
  • TRAXXAS 1/10 Revo 3.3-53097-3
  • TRAXXAS 1/10 Rustler 4X4 BL-2S-67164-4
  • TRAXXAS 1/10 Rustler 4X4 VXL-67376-4
  • TRAXXAS 1/10 Rustler 4X4 VXL Ultimate-67097-4
  • TRAXXAS 1/10 Slash 4X4 BL-2S-68154-4
  • TRAXXAS 1/10 Slash 4X4 VXL-68386-4
  • TRAXXAS 1/10 Slash 4X4 VXL Ultimate-68277-4
  • TRAXXAS 1/10 Slayer Pro 4X4-59076-3
  • TRAXXAS 1/10 Stampede 4X4 BL-2S-67154-4
  • TRAXXAS 1/10 Stampede 4X4 VXL-90376-4
  • TRAXXAS 1/10 T-Maxx 3.3-49077-3

Supplied as a matched 37/13 ring and pinion for front gearbox fitment, this GPM gear set is intended for compatible TRAXXAS models; confirm the factory part number and follow your chassis manual for correct assembly and mesh settings.

Does this upgrade require new bearings?

Not usually; the package contains only the ring and pinion. Inspect existing bearings and replace if worn when you open the front gearbox.

Will spiral-cut gears change noise levels?

Helical gears tend to run quieter and smoother than straight-cut types because engagement is phased and the load is shared across more teeth.

What should I check after fitting?

Check for correct backlash, smooth rotation under load, and that shims and bearings are seated correctly. Recheck after a short test run and retorque fasteners if required.

Is this compatible with high-power brushless motors?

The 20Cr steel construction is robust, but suitability depends on overall drivetrain and tuning. Monitor wear and ensure gear mesh is set correctly under higher loads.

How do I confirm my front diff part number?

Open the front gearbox and compare the ring and pinion to the listed TRAXXAS part numbers, or check the chassis service manual which records the original diff part number.

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