Vin trouble

Truck is a 4x4, the axle does sit below the spring but I'm going to mounted on top the way the original was... I'm using the mounting brackets from the truck with the shock mounts from the car welded to them in the proper place. My buddy with a 3d printer is going to copy the mounting bracket as one solid piece, same for each side.
How are you addressing the width issues?

I saw this done before and it included cutting the axle tubes down to proper size, cutting off the axle tube ends and welding on the 8 3/4 or 8 1/4 ends in order to use passenger car axles and brakes.