I currently have a 1965 Ford Mustang that I would like to convert from a C4 to a toploader. However I have a couple issues with my upcoming project. The car was originally a 6 cylinder car and still has the original driveshaft and rear. I am not sure if these would need to be replaced for the toploader conversion. Another problem is that the 289 is a 5 bolt block. I will also be requiring the 5 bolt bellhousing for the toploader. I am not worried about getting that because I found a couple on ebay. I was wondering if there were any special parts that I would need because the car was originally 6 cylinders and because of the 5 bolt 289. Any help or recommendations are greatly appreciated. I know many will just say do a T5 swap, but I want to keep the car how it would of been during the 60s when it was new. Also if anyone knows of a good website were these aftermarket parts can be purchased I would appreciate that as well. I have been looking on CJs and Summit, but they have a lot of parts for the T5 swap and not a lot of the parts are for a 5 bolt 289.