OK somebody I need to figure this out and I need some help. I bought the assembly manual for my 57 and was looking at the measurements they have for distances between points. Well they say things like 30.18 to CL. I figured out the CL, that's center line of truck. However every tape measure I own and have ever bought is in 1 sixteenth inch segments. Could anybody out there translate for me?

Willy 57