727 doesn't shift into second gear like it should

Oldkimmer is correct. Mine was just shy of 2 15/16" if you need the tape measure style measurement. I did measure mine with calipers and it came out at 2.938". I pushed the valvebody up against the housing before I put in any bolts and made sure that it sat flush to make sure the accumulator rod wasn't too long, it fit just right.