I am not sure if there is an answer to this question, but figure I will ask and see what I get. A few years ago I swapped the rotted frame out from under my 80 Malibu for one from an 87 MCSS. Two house moves later me and my daughter are diving back in and are going to install the body mounts this week. I am wondering is there a measurement for the gap between the pinch weld and side of the frame?