Ok, here is the deal, I have a 90 accord ex with the DOHC f22b motor and h22 prelude transmission, and exedy clutch. My problem is as followed: 1st and 2nd gear in shift are pretty smooth, moving out of 2nd going into third (depending on the rpm) gives off a griding noise. If im stompin it going down the road and try to put it into third, it dosen't go easy unless i give it a hesitation, even though that still give me a grind. If im taking it easy, driving it normal, shifting is nice when im shifting into gears around 3500rpm. I have noticed when slowing down that it is hard to drop into 4th and 3rd (in shifting itself). I don't know what is going on, nor do I know if I need to explain this anymore to get a possible reason for this problem. Please, if you have any input, let me know because this tranny isn't that old and im not wanting to have to drop a new one.

 

Sounds like the synchros at 3rd gear...

 

try synchromesh mtf