53fresno, Glad to see another 'bolter in the area, I'm from Sanger. I have used disc brakes on the straight axle both ways, with Canaro discs for 5 lugs and with later pickup stuff for 6 bolts. Either way works fine, but it's best to keep one spare so stay with the 6 lugs. There are plenty of wrecking yards that have the stuff to make the change, try Turners they have 10,000 cars. If it would help, call me 876-1728, I'm Don