Thanks for posting the link andrewmp6. Our Pro1 kit linked above is a great kit and a lot of forum members are running this. I too, lean towards bags for the adjustability aspect.
We actually have a sale going on this month for the Pro Series kits. Our Pro1 already has built-in discounts into the price, but we took another $115 off this month.
Feel free to give us a call anytime, and would be glad to help you choose a suspension setup that works best for you and your budget.
http://67-72chevytrucks.com/vboard/s...d.php?t=614788
Travis