Is their a spec on acceptable front diff input shaft play? Posting for someone on another forum - machine is a 17 570, I think it’s still the same Hilliard as in my 400HO.

 

2015 570 manual I have only shows gear lash play if you take the coil plate off. Play is adjusted by the hex plug on the case side.Doesn't show any thing about the input shaft play. Later manuals may show different on this.