If the Camoro/Nova subframe is to wide for your applications try GM A-body. Just cut them a couple inches behind the upper control arms. There 34" wide 3" narrower and aftermarket suspension and brakes are available. Or you can use the Camaro spindles and disc brakes by modifying the upper control arms and machining some new sleeves for the ball joints. This will give you better roll centers for better handling. I'm glad to see that people are using suspensions more suited to the vehicle weight. The Mustang II swaps are much to common on cars that are to heavy for their application. In the 70's and 80's we had no choice but to use these. I did a couple of completey fabricated front suspensions for customers but the cost was way to much to justify finished product.