Like the title says, i'm having an issue with my 2004r. It's the one I put in my Chevette. I drove it home from work the other day, shut it down for an hour or so, went back out and I have no gears. No reverse or drive gears, nothing. I verified my linkage didn't come off so I dropped the pan. Internal linkage looks fine. I can see it moving the piston in the valve body when the linkage is moved. Nothing looked out of place so I tossed the pan back on and refilled. Big shock here, but it didn't fix itself lol. Any ideas?