There is no tapered bearings to fit 8 lug hubs. The cheap way is to swap out the front axle and disc brakes
they used the same springs in the 1/2 ton and 3/4 ton trucks. There are several treads on different forums that have rotor hats from different trucks which fit the stock rotors. These are usually a larger diameter
so you would have to fabricate your own brackets for the calipers.
