64 Dart Driveshaft Length

Pictures of a trunion "replacement" driveshaft. was on a 64 dart 4 speed with 8 3/4.

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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.