Michigan Metal Works makes a set of conversion arms. I believe they are 2.5 or 2.75 wider than the 1 ton arms. I have used them personally and they bolted right up. I was able to turn lock to lock, the only limiting factor was the 24" tires rubbing the brake line tab, which can be moved or you can build in some steering stops. Using the 3/4 ton hubs allows for less camber curve as well.