you can only use a 93 tranny if it's b series, not d. they didn't use modules back then I don't believe...at least I've never heard of them...the only reason I had to have one wired in was because it was a newer tranny from a teg which did use a control module...now I'm faced with a cel because not only is my p28 trying to control my trannny and being overridden but the tcm is actually doing all the work, causing the p28 to throw a cel....