<font color="blue"> I did notice that the top link pin does show wear after using the backhoe, so I think I will replace it fairly often.
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ksmmoto
That pin should not show much wear, since the correct pin is a special hardened one. Mine ovals the bushing in the "mast arm" but shows no sign of wear on the pin itself after many hours of use.
I would be concerned if the pin is showing wear and would go as far as buying a new pair of the hardened/strong original equipment pins if there was any question as to the ones you have being the right ones...since it is a safety concern.