Plus getting parts for the original hydraulics/ hydro drives will be impossible. That Oliver/ White I pictured above? was already difficult around 2000. It was supposed to have been rebuilt, it's a sleeved engine. Turns out someone just re-ringed it used old pistons and sleeves, and they had lots of taper and wear. And they did not "ream the ridge." Damn thing broke the top rings and ring lands, and I had to buy new sleeves and pistons. They were hard to come by, I'd hate to try that again.
