[oldschool18]

the 4 link will replace the leaf springs and they might have a bolt on set but will be more money or you can get a set and fab them up yourself but will take some time and a welder and other tools and a lot of measuring. how far does the front need to come up you could always ad some leafs up front. To do a airbag setup your going to have to do a lot of work and be without your truck for awhile and I always tell people save atleast 2000 to get started. And like I said before you could get a set of helper bags for the rear....they would mount to your leafs and to the frame to give some extra support it only requires a small tank and compressor and could be put on in a day. full air ride set up you would have to find a place to mount a bigger tank and compressor, but as I said before if it was me and it was my daily driver I wouldnt do bags and when its cold it can take a little longer to get the bags moving and you get some moisture in the lines.