For an 8" lift you will definetly need longer drive shafts. To run those big meats you should also upgrade your axles. New gears are a must. Once you go SOA there are a number of different combinations that you can use to yield the required lift. Lift blocks were mentioned earlier. You could use the 3" block or a shorter block combined with add-a-leaves and/or longer shackles, but I would have to agree with Clark and recommend staying away from lift blocks all together. There are better ways. The 3" spring packs located over the axle should provide the result you're looking for. Someone also mentioned 38's. Take everything into consideration. 38" meats will look way cool but they have their disadvantages. If you get tires that size you might also consider a few engine mods for some more power. I hope you have a V8. Your braking distance will decrease significantly and may require an upgrade. Fuel economy will also suffer. I'm not saying that all of these mods are necessary but just keep them in mind. Try to address all possible hidden costs. The mods are endless. Plan to spend twice as much money as your initial estimate. If you're gonna do it, do it right. You might not be satisfied otherwise. Christ, I sound like a preacher... he just wants to lift his truck. Sorry, I've been down that road before. Good luck. Post pictures.
