check this site! http://www.hpsalvage.com/ Click on project cars on the left blue box. Then look at '99 Camaro LS1/4L60E in a 98 C1500 the second one from the top. If you look at "more photos" and you will see how the frame is notched. I bought my drivetrain setup from Mark at HPSalvage. Mine and Farmtruk's rides are on that page!