My 1960 K10 has those birfield joints on the front end. In other words, no tie rods (unless you consider the drag link) and no ball joints. I've found lots of disk brake conversion kits for the 2WD. Has anyone got any info on a conversion kit for the front end of a 1960 Chevy 4WD pickup?

Places I've looked so far:
http://www.classicperform.com
http://www.brotherstrucks.com
http://www.chevyduty.com
http://www.lmctruck.com