4 speed harder to get in get after warmed

RustyRatRod said
The first recommendation in the service manual is ATF.

Yep, it cheap enough to try it, and may solve the problems.

(After fluid level and the clutch adjustments are verified) because if it does it in all gears plus reverse it could be just an adjustment.

Get that fluid level checked first just in case because it's true about acting like that when low.