what are you planing to do with ur truck?
Is it worth it? well, it all depends what you wanna do..
if you are into desert running go with some hoe's and deavers..
but if you want a lot of clearance to go on trails, climb rocks go with drop down bracket lifts...and add coilovers and get a custom leaf pack if you want a better ride and performance...
and you would prob want bigger tires... if you have a drop down bracket lift, if you have a v6 going with 33's, shouldn't worry about regearing...but you should think about it..but 2.7L you'll need it,
you can go with 35's with the drop down bracket lift, and you'll def want to regear
regear will cost about 1g more or less depends on the shop...