The middle-gear and rear-axle assembly takes the brunt of the torque from gearbox to the drive shaft and, ideally, should be inspected and overhauled at the same time as the drive-shaft itself.
This component, and perhaps some of those listed below may be required?
The drive-shaft and middle gear assembly should be inspected and overhauled in unison .
Add as many items as you wish to the same shopping cart, new thrust washers 3H51752900 & pinion shims 4X71753100154X71753100304X7175310050 for example, and still only pay the same single fixed price shipping cost.
This component may have other applications within the Yamaha model range.