Up for bid is one Tremec Tr-3550 5 speed. I bought this transmission to install in my ‘79 T/A. I had the unit completely gone through by a reputable rebuilder and it has a clean bill of health. The unit came out of a ‘69 Chevelle. Turns out the unit is configured for a Ford (I was under the impression they were universal, oops) Included is the QuickTime bellhousing (new they sell for $600+) which was probably modified because as I understand it it’s a GM bellhousing. So you can use the Tremec in your Ford w a Ford bellhousing or if you have a GM you can make it work w some more mods. Google it as that’s about all I understand about the situation. I’m going another route. Please do all the research necessary to ensure this is what you want. I will do my best to answer any questions. It will make a great upgrade for a 4 speed or replace your worn out 5 speed. Bid and bid often Thank you for viewing.