We use the QA1 cross member that uses Torsion bars. Also have the old CAP UCA's with Heim ends, the QA1 LCA's and adjustable strut rods. We have plenty of castor dialed in and can have over 6" of suspension travel which helps with Caltracs. Happy with it. We did bend the cross member enough to push the steering into the headers after a messy wheelstand. So we have a new one on the way. Also we don't use the engine mounts, they will have to be cut off on the drivers side at least if you use any sort of external oiling system.