so...im debating what to buy for my next truck. either an older duramax 2wd or a 4 door like 03 or 04 4x4 gas job. im looking for fuel milage for less then 10k on price. im not looking into lifting anything so that means i would like to maybe look at a leveling kit for it. so let me know your opinions on it and let me know what would be the best option.