If you mean cranking the bars for some aditional lift then you just crawl under the truck with (I think a 3/4 socket) and long ratchet and start cranking. Follow the T-bars back to their cams which are located in a crossmember, and on the bottom of the crossmember ate the bolts you need to turn. This only safely gives you about an inch of lift. you should do a search on this to see everyones opinions on this practice. If you want to lift it for the purpose of more ground clearance and bigger tires then you have 4 options. 1. a body lift($100 to $150) 2. suspension lift ($500 or less for 2"-3")($1000 or more for a 4" to 9.5") 3. Solid axle swap (can spend $2000 or more) click here for more info 4. any combination of the above. Here are some links to some lift kits.