Employee was sitting in a 375 Komatsu dozer at the beginning of shift. The other equipment was parked in line behind him. A D11 dozer was parked directly behind the fill dozer and in the process of getting out of line and to the work area, his blade hit the ripper shank on the 375 dozer. At 7:49 pm the employee notified the foreman that his neck was hurting and he was taken to ER.