How far should the cable go into the speedo head and also the trans. New cable and stock, reworked, speedo head and sm420 trans. Took it out for a drive and speedo only got to 10 mph and I know everyone was going about 30 mph. Got back home and checked it for kinks and too small a bend, everything looked good. Pulled it out of trans. and put a drill on it and it went to 35 mph,so I know that it goes faster than 10 mph. It seems like when I put it in the trans. that I have to pull it out of the speedo a little. Any input will help. 53 3100 root