I've got a 1998 Limited (auto) with no trans/T-case at the moment. I've got a line on a wrecked 2001 sr5 3.4 4x4 (auto) with what seems like a good working trans/t-case. I notice there is no kickdown cable on the 2001. Is this a bolt in/plug in and go? Or is there modifications I'll have to do?