So iv been working out all the kinks in my 91 crx si with a ls vtec swap. Was leaking coolant, fixed that. Wires were chopped, fixed that. Now when im driving it goes into 1 easy, 2nd is easier, 3rd is pretty easy, then when i go to shift to 4th it will not go all the way into gear. it pulls down like its in gear and when i let go of the clutch it grids so i try again and it still does it. I have no idea what shift linkage i have. But it goes into every other gear without any problems. I just can not figure this out. Any help would be great. Or any suggestions.

My mechanic says the gear is there but it wont go into it. So... Thanks in advance.

 

bump......
trying to figure out asap