I already have a 2.5" leveling kit on my truck and i was wondering if I could put a suspension lift on with the leveling kit still on there

 

It depends on the lift you go with. Some kits, like the standard 6 inch Pro Comp lift, use the OEM coilover shock with a 6 inch spacer. I would not stack a leveling kit on top of that. If the kit comes with longer replacement coilover shocks, like the standard Fabtech lift, you can install it with your leveling kit for 8.5 inches of total lift.