Another Shock Question

[Worktruck]

I remember seeing this asked before but can't find the post. I have the F**d keys on my Sierra and they are tweeked all the way. Seems like the shocks are topping out. Is there a shock for a 3" body lift available? Is the shock from the HD an acceptable replacement? Any info is appreciated.

[silverado3500]

The shocks are the same lengh on the HD as the half tons.  The shock mounts are on the frame, therefore a body lift should not have any affect on the length of the shocks.