This part is the front centre drive shaft used on the YZ-4S layout and is specified as a 66mm dogbone for applications that require the longer centre piece. It is intended for use on the RC YZ-4S chassis when setting up or maintaining the centre drive and slipper clutch arrangement.
Fit notes: the 66mm length is selected to provide clearance for slipper clutch assemblies while maintaining correct driveline geometry at the front centre position. When replacing the centre dogbone, confirm fit with existing outdrives and slipper components to ensure reliable operation.
Adjustment impact: fitting the 66mm dogbone alters driveline engagement and spacing; use it when slipper clutch installation or clearance considerations require the longer centre bone, and recheck axle alignment and bearing seating after fitment.
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