I also see used grippers go for way more than they are worth. Just order a new set through dirtcheapsnow for $175, and you have everything you need minus the ski - spindle bolts, nuts, washers, and carbides. Can buy that hardware separate at the same time or just buy stronger 10 grade bolts from fastenal in a 150 mm length. Carbides I went with hard welds through johnmaster.
Thanks good advice ...the more I learn about the poo ski the more I like