This seems to be a very hot topic, and lucky for me because I need to install a set of conectors in my 66 belvedere and have not decided just how bad I want to cut the car up, just a 6 cyl. shell but rust free, perfect for a S/S class. Have you guys received your copy of Mopar Collector Guide, and noticed the tubular bolt in connectors made by a company called Magnum Force, these things look like they might have some potential, made from 1 1/4' round tubing, what would the benifits and disadvantages of a bolt in set-up like these be over the traditional 2x3 installations. Giving some serious thought on calling this company and trying them out. Gearbox.