i had hoped that hard shift into 4th would be cured by installation of new motor and tranny mounts, but i still have difficulty shifting into 4th gear. what are some other items to look at that may be causing this?
Each gear has its own syncro, Was trany rebuilt?are there new syncros in it?
4th should be the easiest gear to go in.
all bolts at front shifter tight?
hard shift is not enough information. Hard as does it not engage. Or engages with more effort. Or does it grind. Does it grind everytime?. Look closely at shift rod. Very possibly it is making contact with transmission. Also alignment of pivot ball is more critical with some transmissions. Makes sure the pivot ball is not binding. Too loose or too tight can cause issues. I would fiddle with adjustments before pulling trans..