slip yoke play

Hello first time post question. I have a 1967 barracuda with 273 engine,A904 transmission. Was getting ready to replace slip yoke bushing have axle out of car . Was dry fitting the new bushing to see how it fit. Seems like there's a little bit of play or wiggle in It seems like it should be almost tight maybe I'm Wrong. Micrometer says inside a bushing is 1.56 and outside of slip yoke is the same 1.56 not sure why I have play in there? Anybody has any experience with this?
Thanks for any help

Chris