I upgraded tMy 1953 C-170 yokes and pitted shafts with a brand new, still in the box pair of 172 yokes. Cessna wanted north of $1,800 for each shaft. After I threw up I measured the size, thickness and length of the shafts then went to Granger Metal supplies and bought 1 six foot stainless shaft and made 4 shafts of the exact length 17.25” if I remember correctly, drilled the new holes and with shipping paid $77.00. I still have 2 more shafts. Wondering if I can find a low flying pidgin who would pay $3,600 for the other 2 shafts…a project that wasn’t that difficult