The overdrive transmissions that I was originally talking about were the 3 speeds with the planetary type overdrive unit controlled by an electric solinold. The type that Blackwater mentioned is interesting also. What little I have read has been about the Chrysler units. These are 4 speeds where 3rd is direct drive and 4th is an overdrive. One question I have about the OD 4 speeds that blackwater is talking about, is the cluster gear different than a regular Saginaw 4 speed? Thanks in advance, Jay
YES!! They ARE different. The only parts that I'm sure are interchangeable are the bearings and the case parts. I only ever saw these in Camaros and one in pickup. Pretty rare. The Chrysler units were in Aspen and comparable wagons and one or two in corresponding sedans. You'll hafta' comb the junk yards for these. Like I said, most of them that I saw had bearing failures, particularly the middle main shaft bearing. Some of them were pretty spectacular. Some were catastrophic!!
