I was told by the gm dealer the other day that cable throttle was normal till 2005 but in 03 the drive by wire could be had as an option so look for a cable drive it will be eaiser should be able to get a 04-05 with 30-50 thousand miles mine is a 04 cable drive with 48000 got it from aa truck and van parts in ft worth texas with tranny for 1900 shipped....