thanks for the quick response, thats what i was thinking. its 600 bucks so i might just pick it up anyways. i was just hoping it would make it to my garage.
I probably has a 242 or 249, get under there an look, if you replace it with a 231 and it was not a 231 in there to begin with be prepared to bring a Driveshaft that will adjust from about 41-43 inches from what I have been reading, maybe a front XJ driveshaft, don't know, never measured one. I've just started getting into them since we got ours a couple weeks ago and that TC changeover was one that stuck in my mind. NAGCA.com has some postings on the subject.