sik350
wuts bio-diesel?
Where can i order one? my truck is a 07'.
Where can i get the dual shock for the front?

Where can i get the dual shock for the front?
I just ordered a 2 1/2" spacer from top gun cutoms for my 06. The levaling kits are the same for srw and drw trucks and you can get them from 1" to 2 1/2". The next size up is a 4" then 6" and so on. Just depends on how much you want to spend and how much work to install.
I would have to agree that pro comp would be a very good choice or maybe skyjaker. Just remember that you may change the weight capasity of your truck. Try top gun or maybe some other guys will have some sugestions just be carefull some mail order shops have people taking orders that have no idea what thay are doing.