Bought a pristine '68 IH Cub Cadet 125, which has a hydrostatic transmission. Never cared much for a hydro before, and said so on numerous occasions in the past, but oh my, I love it now. It's pure joy to use.
Thanks for the heads up Thomas. I have the exact tractor you described. I haven't pulled the plug outta her yet, maybe I'll take a look at it tomorrow.