64 Dart Driveshaft Length

Thanks for the responses. My friend that owns the car would really like to keep the original set up. I am just trying to figure out if we need to cut a little off to make it fit correctly. It is in the car and running but seems a little tight to install.

Is the trunnion shaft sliding freely? Normally the rear universal is removed and the trunnion unbolted from the transmission the trunnion shaft should compress to remove. Replacement the same if all things are the same.

I'd have to look at the difference between the yoke position on the 7 1/4 versus the yoke on the 8 3/4 which would create the "tightness"