I have a 1999 Dodge Stratus 2.4 inline 4. and myy AC compressor went out a week ago and I reparied it. I decided to go with the bypass belt till I could find time to buy a new compressor intall it and recharge the AC system. If you are going to use a bypass Belt you have two options to do this. One, go to your local auto parts store and see if your car could be ordered without an AC. IF it could be ordered without an AC, buy the recommended Belt and that should work. If not, you will have to do what I did. Take a flat tape measure, the type a tailor's use for clothes and put it around the desired pulleys you want the new belt to go on. Then get your measurement, rember to hold the tape measure tight against the pulleys. Then what I did was buy 3 different size belts. One that was my desired measurment, One a little smaller and One a little bigger. I ended up using the one a little smaller and then after I installed it I returned the other 2 belts. Also, when you go to the auto parts store, not all Belts are listed by thier lenghts. Usually only the premuim brands are listed by thier lenghts. For me, I went to Pep Boys and they had no brand listed by length. So I went to Kragen ( I live in Nor Cal ) and they carried a cheap brand and thier premium Gates brand listed by lenght.
Now it has been 3 weeks since I completed my repair and I miss my AC. Defrosting in the morining takes about 2 minutes longer and the car gets stuffy once and a while. I am going to reapir my car in the next upcoming weekend.
Also, I went to Midas and they wanted 550 for a new AC 250 , intall AC, New Belt, and AC charge. I went to another shop and they were about the same. I live in Cali though so labor is more her