This is a good thread to read:
http://67-72chevytrucks.com/vboard/s...d.php?t=575686
Member way2lo2 has an eBay store. Look for Streetmachinery
Boris has been bagging these trucks probably longer than anyone.
He can sell you these basic kits or Ridetech or Airlift products, all the way up to a full RoadsterShop chassis.