I just bought an 05 4.0 Mustang engine and 5 speed auto tranny I am going to put into my Suzuki Sidekick. I'm sure that will piss off some of you. I want to know if I install the engine with no o2 sensors will I have engine problems? Too Rich maybe. And I wanted to know if I can replace the motor driven throttle body with one from a 04 GT model? I have the entire wiring harness and computer. Any other problems you can think of will help. I also was planning on having a custom driveshaft made so I could use my Zuki rear end which is a 4.62 ratio. Is this going to be too much of a problem. I have heard of running 3.73's or 4.10's but not 4.62. Thanks in advance!