Can anyone help me troubleshoot the slow ground speed issue I have. I have a new to me MTD990 Hydrostat. 1971 Fourteen hundred series. I have about 3 mph in high range and 1.5 mph in low range max. it should be more like 8 mph in high range and 4 mph in low range according to the book. I...

I discovered my hydro cooling fan is missing a blade, so removed the top cover for access. Seeing the ”C” clip I removed it but gained nothing in the way of seeing if there’s a roll pin holding the rear universal joint in place. It seems locked into place. I’ve been dribbling Blaster onto the...