Any LowBuck but STRONG overdrive option?

There was a (add in quotes) “lock up 727” as a HD option in vans and trucks in 78-79’.
It was a standard 727 with a lock up converter set up and a extra electrical plug on the side just like a 904 lock up. Those had a specific number - I don’t know what it is. If you are close to CT I will sell you a lock up converter 904 (I believe complete)cheap.

you said “masshole” so I assume you in New England.
PM me direct.
Joe