67 frontend question

[carl609]

I am starting to find out that a lot of parts for my 67 are one year only. Can I convert my front end to the later style, mid 70s ball joints and disc brakes? I know these are a lot cheaper, and those trucks are everywhere and all have disc brakes. Also, is that style trucks 12 bolt the same width? What I am getting at is mine is 6 lug and I don't want to buy the 6 lug disc conversion, as replacement parts will be harder to come by. I want to just switch axle shafts but the conversion ones I have seen are too much money. Thanks