68 4X4 Suburban axles?

[skoffice]

I hear ya! If I had a 4x4 burb I would drive the heck out of it! Those old drums in front don't make for a very fun experience hah. You will have to change your proportioning valve too, cuz the one you have right now is just the distribution block and the front calipers require less pressure. I'm pretty sure you can get a D44 from anything up til the mid 80's, so that gives you a lot to choose from!