There are a few options to lower the truck, and some more affordable than others.The drop spindle up front is a great way, since it doesn't reduce wheel travel or effect ride. However, a mentioned, it does require a disc brake swap at the same time. I would recommend the spindle and disc brake swap if funds allow. It is a great safety upgrade also.
In the rear, a drop spring is a good option. With a 2.5" spindle up front, I would recommend a 3" spring. Below are some links to the front disc brake conversion we offer, which includes a drop spindle, and a link for the rear springs.
Doing just springs is also an option, if the spindle and disc brake swap aren't in the budget. You can always upgrade later on and use a stock height spindle, if not wanting to lower more than your front drop spring does.
Hope this info helps.
- Travis
http://www.azproperformance.com/Pro1...60-72-C10.html
http://www.azproperformance.com/Mcga...168-63169.html
http://www.azproperformance.com/McGa...171-63172.html