[robnolimit]

Your basic set up looks OK> And while I do make a nice 4-bar kit for the 47-54 (and others), I think you can sort this out. T Hilde may be right. Was the bed on when you drove it? Your p/u, even with the extended cab and late bed, will only wiegh about 1250 lbs on the rear axle. - without the bed, 950. My guess is that the rear of the wagon was around 1700 lbs. Now, does it turn the steering wheel, or does it 'hop' to one side when it hits a bump? If it turns the wheel, its in the front. Find a set of RR tracks and drive across them at about 30 mph, with you hands just off the wheel. Watch what it does when you go over. At a lower speed 25 - 30, its easier to pick out the front/rear action. Next try to soften up the rear, maybe pull the shortest 2 leafs out and try the same route. - The same effect can be created by adding wieght to the rear to match the spring wieght. If the bed is on, put 300 - 400 lbs in it and drive it. We use sand bags (well, garnet, from our FlowJet) This will give you a quick idea where the trouble is. What is the IFS? Any shots of the stretched cab?