I am installing a Magnaflow catback part # 15755. Box says 2003, but I think they are the same. I am having a hell of time getting the intermediate pipe over the rear axle. If you have installed one, are the any tricks to get the pipe over. I have it on stands about 3' off the ground. Do I need to find a lift and come at it that way straight up. Any help would be great. This is my 3rd Magnaflow kit(Mustang GT, F150), and I have never had a problem. Please Help!!