This SLA1337FR pair provides matched front and rear differentials for TRAXXAS 4X4 platforms as a direct-replacement drivetrain upgrade. Both units are supplied fully assembled with spiral-cut internals, CNC-machined 7075-T6 aluminium differential cases and medium carbon 4140 steel inner and outer gears for reliable strength in hobby use.
Fitment is designed as a bolt-in swap for the listed TRAXXAS 1/10 and 1/8 4WD models, letting you upgrade drivetrain components quickly without bench gear-meshing or extra case assembly. Differential oil is not supplied and must be added to set slipper and limited-slip characteristics to suit your driving style.
Use this assembled SLA1337FR front and rear differential set to replace worn units or to harmonise drivetrain parts across compatible TRAXXAS 4X4 models, then adjust internal oil and gear lash to fine tune slip and handling.
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