I am wondering what the main differences are between these two year models other than the exterior body style. What were the engines rated for HP and Torque? Is one better than the other? I am looking for a manual tranny, so any changes between these two in the tranny? I am looking for a quad cab and the 03 appears to have a lot more room in the back and having four doors is nice. Any other recommendation when looking at these trucks is also appreciated. Thanks.