The 13T pinion and 43T spur in this kit are intended as a scale-accurate replacement for the centre gearbox found on LOSI LMT 4WD solid axle monster trucks. Medium carbon steel construction helps match the durability of the original parts while keeping nominal gear geometry.
This set is aimed at routine repair and serviceability rather than performance tuning. Fit the gears to correct mesh and backlash, and confirm bearing seating and shaft clearance before completing the gearbox reassembly.
LOS242040+LOS242043
For owners seeking a direct centre gearbox replacement for LOSI LMT models, this medium carbon steel 13T/43T kit restores stock gear engagement; always check mesh and bearing condition during install for reliable service.
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