65 barracuda trunion driveshaft conversion

I took all the parts (and yes it is 2-3- 8001kx) to a driveshaft shop today. the 2-2-249 flange fits directly into the 3 5/8 pilot diameter on the tail flange. My shaft spec was 55" from the rear facing surface of the tail flange to the centerling of the rear u joint. Probably no two cars are the same. I will post pics when I get it back next week. Should be no drilling required.