Re: 16G Professional
I bought my tractor new in the spring of 1996. Counting the original I am on my third forward clutch, and that was done just a few years ago. So I would say on average I have gotten 10 years/400 hours out of each forward clutch lining. I plow snow in the winter.......if it snows.
The reverse clutch has only been replaced once, and is still like new.
So, if you replace the worn lining, keep that spline lubed, keep them properly adjusted, you are likely looking at likely 10 years or more before you would have to replace another lining.