[Juday]

If you're going with a 4" lift, I would HIGHLY suggest going with the PRG 4" Performance package. This can be found at www.prgproducts.com and the man to talk to is Greg. He specializes in suspension for the Titan and MANY MANY people here have bought there suspension setups from him (including myself). His customer service is absolutely the best you'll find anywhere, along with the absolute best products. Greg is a site sponsor on here, so just send him a PM explaining what you would like. Usually he doesn't respond very quickly to PM's (he's a very very busy man), so I would just call him.

Many other people on here are going to tell you what I've just told you about Greg and his products. You can't go wrong with him so just give him a call. Good luck with your purchase and post some pics of your truck when you get it on!