Jeff- those links are bad.
I've been looking for the same thing since I bought my 3500. I had my 2wd 96 lifted in the fron, via custom coils that I had built. Mucho $$$$. Rode great though. Fabtec's spring for an F-250 will fit, (for a 2500) and adds about 1. 5" of lift.
One thing you need to watch out for is to make sure the springs (if you go that route) are rated for the truck. The problem I found isn't the 2500/3500 part, its that darn chunk of Iron we call a CUMMINS that adds the wieght and changes the suspension rating.
I don't want to go the custom springs, but may have to:{ .
Kev