Conversion speedometer cable designed for use during engine and gearbox conversions, connecting the factory Datsun dashboard to a mechanical speedometer drive. This cable is used where a mechanical speedometer is required following an engine conversion. If your gearbox does not already have a mechanical speedo drive, you will need the Datsun Conversion Speedo Drive (Part No. MSD13). Please Note: Designed for use with engine and gearbox conversions Connects the factory Datsun dashboard to a mechanical speedo drive Datsun Conversion Speedo Drive – Part No. MSD13 required if you do not already have a mechanical drive Your existing electronic speedo sender must be replaced with a mechanical speedo drive for this conversion Please contact us if you're unsure which components you require