This might seem obvious, but be sure that the set screw is cranked down good and tight. I thought I had stripped the splines in the lever one time and discovered that the set screw was very loose. The screw was hard to turn even when backed out a few turns. Seemed like it was tight, but it was not.
Might be possible to remove the pawl by only taking off the tranny top cover - can't remember for sure. If you do need to pull the primary, get one of those extended transmission nut sockets.