Why not Coilsprings???
AFacey,
Just my opinion, but why not go with the skyjacker coils? I just bought some for my truck and they work perfectly. They are about the same price as spacers and you get new springs that work better than the stockers.
My truck was sagging so bad in the front with the stock springs. With spacers, it seemed like I was going to hide the problem... not fix it.
Good luck!
Karl