I have a 87 tc that was a 5speed car. I am putting a 351w with a c4 in place of the 4 cyclinder. I have the motor and trans mounted but the 5speed driveshaft is about two inches to short. I had to make a bracket that mounted to the crossmember and moved to transmission mounting holes two inches forward. I now know I need a double hump trans crossmeber. So I am assuming that a c4 is about 2 inches shorter than a aod. I was wondering what vehicle I could get a longer driveshaft out of. I am thinking a crown vic with a aod any other suggestion besides getting a driveshaft built.
might be best to have a DS built. They are not that expensive.
Better yet, get a Police Interceptor driveshaft and have it shortened :D
that is what I am thinking. I am trying to keep it under a tight budget.