When I started the installation of my US CARTOOL e-body sub frame connectors I expected fitment issues from the start as I was working with a 72’ b-body. The forward sub frames and floor pans are the same however the rear sub frames are located more outboard than the e-body’s. There was a rework of most of the contours and required an angled sectioning of the connector itself. As a hobbyist and not a professional auto body guy by any standards I didn’t find this installation practically difficult. The end result far exceeded my expectations. My dealings with US CARTOOL, on the sub frame connectors and with the rotisserie kit I purchased from them, where one the most pleasant experiences of any of the venders I‘ve had to deal with on this project.