Helios 40A Waterproof Brushed ESC Controller (Equivalent - HL-ESC-1000 Upright Piano The main shaft is a

The main shaft is a critical drivetrain component

1x Traxxas TRX10920 Rear Lower Bulkhead

or you need a specific spring rate to dial in your suspension tune

so you can replace both sides at the same time or keep one as a spare

Compatible Traxxas model vehicle (see parts by model: 109076-4

Helios 40A Waterproof Brushed ESC Controller (Equivalent - HL-ESC-1000 Upright Piano The main shaft is aThe Helios 40A Waterproof Brushed ESC Controller (Equivalent HobbyWing QuicRun 1040) (HL ESC 1000) is a replacement part that is a direct fit spare that restores your model to factory specification. Key specs include 40A. Key Features Genuine Helios replacement part made to original spec Specifications: 40A Keep a spare on hand to minimise downtime after a hard run