This is a single 74mm swing shaft supplied as 1 pcs intended for scale RC drivetrains. It is specified as compatible with Universal, SB and ZX7.5 platforms and helps restore correct driveline geometry when the original component is worn.
During installation verify axial alignment and that universal joints rotate without binding; check for adequate mounting bore clearance and that the shaft remains free through full suspension movement. Correct fitment supports steady power transfer and consistent handling characteristics.
The part is offered as a straightforward replacement for maintenance rather than a high-performance upgrade; confirm compatibility with your chassis and test fit before final reassembly.
Keep this shaft as a spare to minimise workshop time when replacing worn drivetrain items.
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