That is putting it mildly; the '61-'64 full-size Oldsmobiles (as well as some, not all Pontiacs of the same era) had the Slim-Jim (and a variant of this was also in the '61-'63 F-85 Cutlass compacts). Will spare you the details, other than to say that BOTH of the ones for the Starfire and the Wagon were in need of rebuilding last year. I took the two up to someone recommended by a knowledgeable old car guy, and even though he managed to find a third one at a junkyard, I ended up taking home all three transmissions in eight boxes!! Talk about a sick feeling. Thankfully, my mechanic knew of an old retired guy who had worked on Slim-Jims, and out of the three transmissions, he was able to make two good ones out of the three that look and perform as brand-new. A miracle worker for sure! One is in the wagon now, the other I have as a spare (I had to get another Slim-Jim from a friend in Wisconsin that had been rebuilt perhaps 15-20 years ago, and was sitting on his shelf; thankfully the old guy serviced that one, too, and had it ready for my Starfire to go to Fall Hershey last year!!) Lesson learned: if the transmission shop has never worked on a Slim-Jim, run for the hills until you find someone who has!