Well that depends on what suspension you currently have. If your truck still sports the stock suspension, then by all means YES. Just try to avoid the "Catalog" companies, such as Downey, Northwest, Rancho, Trailmaster, Blackdiamond, etc.. I know that in the past those companies' springs were only great for the streets, but were very stiff and could not flex to save their lives.
If you are going to spend some bucks, you might as well do it right the first time. Get some springs from Marlin Crawler or All Pro.
Also, there are plenty of Junkyard Warriors here who have combined readily available junkyard spring backs to yield some pretty incredible results from used cheap springs. Do some searching for Hybrid spring packs and then start asking some questions about if it you are curious.
BigMike
