I've had cars with the mustang II front and IMO our trucks are too stinking heavy for such a fragil front end. If you loose a bunch of weight off the nose, then sure., but I would rather have a light A-frame suspension like S&W or a Alston's kits over the base Mustang II package in a heavy machine.
http://www.cachassisworks.com/c-254-...ion-front.aspx