ever since i bought my car its always grinded...ground?...whatever when shifting into 4th gear. its not bad driving because no matter what i do it always grinds. only way i can get it to not grind is to shift slow when the rpms drop. is this a synchro problem? or something i dont know about....if you know anything please tell me whats up and how much it should be to fix. its not a super big deal but i hate having to hesitate shifting into 4th.

 

Sounds like a syncro problem