2 main reasons to go newer axle is;
1) Better highway gearing. If the 6 won't pull it, I have plenty of V8 power options.
2 Get away from split rims. I want to end up with Budd style hubs and 22.5 tubeless wheels.
It doesn't need to be air ride. It would be easier to control ride quality with bags, rather than playing with leafs. The truck won't ever see it's load capacity and I would be removing leafs to get the ride I want for the weight load.
I wouldn't mind traveling for a complete assembly but more distance equals more gas cost.
So Grigg, the frame width on my '52 is wider than modern standard ?? Seems odd but Chevrolet didn't seem to follow standards back then as evidenced by their own wheel bolt pattern.
This has been my "daily driver" for the past 18 years...
http://i1357.photobucket.com/albums...993210100567145TzYAVl_ph_zps09cb46ed.jpg