A friend of mine has a 02 GT with aprox. 250 rwhp. He has 4.10 and complains about them because he cannot hook up. He wants to switch to 3.73's like his brothers car (his car use to beat his brothers now it doesn"t since the gear change). I told him to get tires and suspension or he would have close to the same problem with 3.73. Am i wrong in my thinking?? what do u guys think?