A lot of people really like the Bilstein's. The fronts are # BE56681-H-5. The rears are # BE56647-H-5.
Bilstein is supposed to come out with a shock dedicated to our trucks, in the future. The ones available, now, are actually for 2" lifted 1/2 ton trucks. They seem to work well, though. Regarding the "dedicated" shocks, Bilstein was supposed to have them out at the beginning of this year and has had 3 or 4 target dates since then. I called them yesterday and they have no idea when they will actually be available. These shocks are, aparently, not a high priority, since another shock is availablem, now. That's from Bilstein!!!
Kore Eng. has Bilstein's, with a valveing upgrade, for our trucks, now. This is the upgrade that will be used by Bilstein, in the future, I was told.
Hope this helps.
Joe F. (Buffalo)