The running gear in these half ton WC's was designed for a 90 horse power engine going through a four speed crash box transmission and single speed transfer case turning 4.89 axle gears with 31 inch tall 7.50 X 16 tires on dually type 5 and one half inch wide split rims. The fixed anchor drum brakes and cam and lever type Gemmer steering box in these things all adds up to a truck that is meant to be driven 45 miles an hour which is fine for 1941 roads and traffic.Having owned and driven a Dodge wc6 command car and wc26 carryall over 40 years and put over 50000 miles on the wc26 with stock running gear I have learned that the people over at the Dodge Mound Road Assembly plant knew what they were doing. The stock Gemmer steering in these trucks is just adequate for the 7.50X16 tires and is an armfull to steer. The Budd Wheel split rims that come on these trucks are safe as long as the rim and lock ring are not bent or rusty.I have changed dozens of these tires at home with just a bead breaker hammer, big screwdriver , dish soap and water.
I have nor have any of my associates in the MVPA have had any issues with these wheels.If you must run the big wheels one thing you can do with some modifications is use 55 through 59 Chevy or GMC pickup steering box, column and wheel. The GM steering is recirculating ball, vast improvement.
The steering knuckle bearings are tiny on these things and are always junk and the top knuckle cracks and the bearing race flops around loose.
So check this out or you will never get this thing to stop death wobbling. Also when you are in the front axle check if you have the Rezepa or Bendix axle shafts. Most have the Bendix. The Bendix axle has to have shimmed up right or it will break stuff. I think the Army repair manual reprint for the half ton wc series trucks is still available through the MVPA. I have gone thousand mile trips is those old clunkers without having to open the tool box but you cant go over 45 mph or hear yourself think over the noise. I think the best way to get one of these old Dodges to faster is on a trailer behind a Diesel dually tow rig. Good luck on the project inch by inch its all a sinch.