"THIS REVIEW WAS SUPPOSED TO BE FOR BOWTIE OVERDRIVES< NOT BOWTIE SUPPLY. These guys sell a variety of things that are hard to come by other places, and I have order from and spoken with them several times. Their tech support is very helpful and is more than willing to answer any questions I have had. If you using a 200/700-4r trans in any sort of vehicle chances are they will be able to help you out. Between these guys and shiftworks you could probably get one running in anything. "