I’m having trouble diagnosing an issue with the rockshaft on my 1978 316K. It seems to be weak in only one direction. I have the mower deck removed and don’t have any other attachments, so it’s a little difficult to say for sure, but it sticks/lags when I push the lever forward. No such problem when pulling the lever - the rockshaft action is quick and steady. It doesn’t look like there are any obstructions to the movement of the rockshaft, the fluid level is good, and this occurs with engine at full throttle. I haven’t had the tractor for long, but I believe the fluid and filter were changed recently. I plan on changing the filter anyway to rule that out. I also plan on getting a pressure gauge to help further diagnose, but was wondering if y’all had any ideas.