Ok. So I’ve been working on this Toro Timecutter Z4220 for a while now. I diagnosed that the right side transmission went bad. I bought a brand new replacement part ($$$$$) and finished the install this morning. I had the unit up on jack stands with the wheels off to perform the neautral position test. My right side (the brand new unit) does not rotate in any direction. My left operates as normal. This is the same symptom I had prior to disassembly and purchase of the trans. The belt is run correctly (I believe) as the left operates as it should. My controls appear to be correctly hooked up. The free wheeling levers are in the right place. When I move the levers, I can see the actuator on the trans move as it should. I can’t figure out what is causing this and am now very worried that I spent a lot of $$ unnecessarily. Can someone with a bit of experience on these things give me some advice? I’m currently at a bit of a loss. Thanks in advance for any guidance.