Hi. I have a '59 1/2ton and have the opportunity to buy a reupholstered bench seat out of a '57. Are '55 2nd to '59 bench seat years interchangeable, are they the same dimentions mounting bracket wise? I say this because I bought a supposed bench seat out of a '57, ( I trusted what they guy told me ) went to mount it in my '59 and the mounting brackets did not line up, they were spaced way too wide.
