If any one can please help, after changing my steering wheel my steering has gone very heavy, i believe that the shaft where the wheel fits on has been pushed in but i dont know how you can pull it back out, thanks please email or text 07974 641913

Are you sure it's not because your new is smaller? Less leverage and stuff, just a thought! Is the boss the correct one for the car, does it make it any nasty noises when turned and if all that fails why not try grabbing your wheel and pulling really hard!
Bob