The single 19.5" wheels I've scrounged here and there.
These folks might have new ones
http://www.ricksontruckwheels.com/The 14 bolt dual wheel drums should fit in a single wheel (most any size) no problem.
The issue is because the springs center measurement is wider than original for the 14 bolt (you're moving the pads out) the u-bolts get mighty close to the backing plates. Might work OK if you use the original 2" springs and keep them to the inside of the shackles.
Might not work so well if you use 2.5" wide springs (from a 1.5 or 2 ton truck) which is my plan because I already have some.
That's why I'm thinking of using the single wheel drums and moving the backing plate, it will also look more normal.
Wouldn't worry about early or late 14 bolt, but given same condition, price, and location, choose the late one.
You'd only need to press the studs out to remove the drum from the hub, which you'd only do if it was worn out. Otherwise to get to the brakes you remove axle and then hub/drum together.
Grigg
