1971 CJ-5 with a T-18?

I just recently purchased a 1971 CJ-5 with the 225 V6. It is on its way, so I don't have it to look at the numbers on the trans but the previous owner claimed it has a factory T-18. This is not the reason I bought the Jeep but it would be a great bonus. Did Jeep ever put a factory T-18 behind the 225 for that model and year?

Well I got the Jeep and it does have a four speed but I can't find any ID numbers on it. Anyone know if it could maybe be a T98? I'll try to get some pictures soon.