Quigley Motor Company has been building Ford Econoline 4x4s since 1974. They offer a complete line of 4x4's on all Ford Econoline chassis (with the exception of the E-150), from vans to cutaways. Quigley Motor Company is the only company that has qualified for Ford's Modified Vehicle Engineering (MVE) program for 4x4 sytems on E-Series vans and Cutaways.  It ensures that you retain your factory warranty on the unaltered portion of your vehicle, ie engine, transmission, rear end, etc. To provide you with the best product available QMCI's 4x4 system consists of the same Ford components as used by Ford in their 4x4 F-Series trucks. They incorporate the same axles, transfer case, rotors, brakes, calipers while retaining the original factory springs. To this they add their Quadra link torque arm suspension. Their standard installation consists of a Ford solid front axle with 4 wheel anti lock brakes, coils spring front suspension, manual lock out hubs, Borg Warner transfer case, 4x4 indicator light and 31 gallon fuel tank on all cargo vans and club wagons. The original 35 gallon tank is replaced with a smaller tank due to the space limitation after the installation of the 4x4 transfer case. This proven durable 4x4 system increase the height of your van on average 3.5". This increase in height gives you a better field of view while providing greater body clearance for those go anywhere, do anything adventures.