Hy z48, there are a couple of ongoing discussions here on the subject of disc brake conversion of the front axle, one in the "Big Bolts" forum, and one in the "Tons o fun" forum. As to the rear axle, you will probably have to relocate the spring pads, but should be a fairly easy swap, I imagine the track is wider on the new rear axle, so as long as that is not a concern go ahead with it. Don't forget about your pinion angle. Have you seen the B.C. Bolters forum further down the page, there are quite a few of us on here.