Speedo Cable Help!!

[hussler]

Hey Guys so i pulled my gauge cluster out and added a tach to my non factory tach gauge cluster, and right now my only hang up is i cant for the life of me get the speedo cable to seat back into the back of the speedo gauge, it will go in but not far enough for me to screw it back on, ive tried turning the wheels in drive to see if i can get it to seat.. Frustrated!!