I wouldn't even bother with a stock spring from any of the left companies. I'd just go custom springs from Alcan. I mean, it's not like it's a $2K difference, it's a few hundred bucks, peanuts.
I have 6" Procomp springs on the front of my K5 and combined with the light 6.0LS, it's terrible. Plan to eventually order a front pair of Alcans.
I have 6" Procomp springs on the front of my K5 and combined with the light 6.0LS, it's terrible. Plan to eventually order a front pair of Alcans.

) front springs, and shackle flip rear. I just added some nice fox 2.0 shocks, and that made a massive difference. Still rides like my stock 01 2500HD did, but 11ty times better than it was. Shocks make a huge difference.
For like 10 minutes....
