I had mine apart, and am just about to put it back together. The total length including the left side rod that hits the clutch outside plate is 11 and 3/8ths In.
There are four pieces total, with the small one being the one that gets stuck in there. I always end up cutting a piece of coat hanger to force it out on to a bath towel, to keep it from rolling off, or getting damaged from the drop to the floor. If the coat hanger is too thin, like the one I just used, it will pass by the short one as it gets close to the right side. Then when you try to pull the coat hanger back, it gets trapped. I cut the other end off to make it straight and then slid it all the way though. Then stuffed it back in and carefully poked the little one out to take these pictures.
Running mine wet, without the derby cover, I can find neutral at a dead stop no problem, as long as the trans is set up correctly. The old trans would shift into First Gear with out any drag, and then realease easily. I am using the Red Barnett Springs, and they work really well. I also got rid of the short clutch hup stud nuts and just run the long ones, as they are much easier to deal with. You can still buy copies through V-twin. The V-Twin trans I put in this last rebuild would not shift to First gear without jamming it up into second first, and then down to First gear. This time since we had the trans out to split the cases, we modified the new trans by putting in the old Gear Shifter Cam and Pawl Carrier as a complete unit. The V-Twin one had weird cuts in it for a positive locking neutral, and it would not shift over them for smooth operation even on the bench. My trans and engine guy, Gene Covert (Covert's Bad As Choppers, Preston WA.) switched them out, and it bench tested smoothly... We shall see when I get it running though. It did fit together like it was made for the new transmission, as that is the only major part that was different. Gene has put in about six V-Twin transmission in bikes that have all had major problems, either getting into First, or getting into Second. The Gear Shifter Cam Follower that is spring loaded at the bottom of the Shifter Cam and is mounted through the trap door, is supposed to hold it in neutral, not the cam cuts them selves. They had to improve it and messed it all up as usual! Well I guess at this point I am not for sure on that, but Gene seems to think this is the cure.