Question about leafspring lengths between LB and SB

[74Chevy74]

I did the short bed conversion on my truck, and I have some questions to see if someone can measure something for me? I know the longbed has longer leaf springs, and now my wheels sit slightly back in the wheel well, so what I am wondering is if the center mark on the long bed springs is different than the short bed? Can someone maybe measure they're short bed from the front leaf eyelet to the center of the rearend? Can anyone chime in on this and tell me if I'm right????