A similar kit from Heidts, called the Superide II, features a weld-in crossmember, rack-and-pinion steering, coilover shocks for full ride height adjustment, and tubular control arms top and bottom. This photo is from our in-house '68 Mustang project. The substantial under-the-engine crossmember takes the vehicle weight instead of the shock towers, leaving plenty of room for an engine swap/conversion of your choice. Many manufacturers offer a similar system with numerous options like coilovers and power rack-and-pinion steering. Think of Heidts, Rod & Custom Motorsports, and Total Cost Involved (TCI Engineering) when considering an upgrade of this type.