That's a good idea but this one had the rear foot of the frame replaced because it was mangled from pushing it around with a dozer. I found a good picture of an M2 and the rear armor was 1/2" past the rear bracket, mine is 1 1/2" past, armor almost hits the pintle when it's open. I have compared the distance between rivets, crossmembers and everything I can think of to another machine and can't figure out what is off.