This Yokomo YOKB7-S5S shock shaft is an RC-scale replacement made for BD7-2014 SLF short shocks. It is intended as a direct service item for SLF short shock assemblies so you can carry out routine maintenance or repair without altering the shock body.
Use this shaft when a bent or worn piston rod is degrading damper performance. Typical fitment steps on a model car damper include removing the shock from the suspension, taking off the end caps and spring, extracting the old shaft and piston assembly, fitting the replacement shaft, and reassembling while checking oil level and shaft alignment. Follow the shock manufacturer or your service practice for oil weight and piston selection; this part replaces the mechanical shaft component and does not itself change damping rates.
For upkeep and tuning the shaft functions purely as a mechanical service piece: straightness and precise fit reduce seal wear and friction, so inspect the shaft during regular service to preserve consistent damper action. This item is described as a 1/10 scale RC damper component and is not for full-size vehicle use.
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