I am rebuilding a 455 for my 68 skylark. I've got a used th-350 and a long shaft 400 for a full size car. I noticed Poston sells rebuilt TH-400 transmissions for $670. Are these any good and are there any other places that sell cheap, rebuilt 400s as I am on a tight budget. Thanks
Have you checked around your own neighborhood? You might find a much better deal right around the corner. Any rebuilder should be able to do a THM400. Ask for recommendations at your local cruise meet.