easy way to fix that grinding from your syncro's
 

I had a problem with my 3rd gear grinding when I went over 4k rpms. It was just a slight grind, but I took it into Honda and they told me I needed a new tranny for $1600.

The car I have is a 96 GSR and I bought it with 40k miles on it because the guy went to the army and left his car.

I hung out with my friends cousinlast night at go kart racing, and he works for a Acura Dealership as a mechanic. He told me that when a car sits for a while the synchros gets some kind of chemical on them.

Anyways, he told me to start the car, rev the engine to around 4500, and slightly push the stick into 3rd without the clutch pressed in. Not to the point where it grinds, just slightly into 3rd before it shifts into gear. He said that would burn the chemical off the synchro.

Well needless to say I did it last night, and when I went to work this morning it slipped into 3rd clean even after reving to 6k rpms.

I thought I would post this just in case anyone else is having that problem. He said it works 50-60% of the time when they have cars brought in for that problem. Dont know if anyone has ever posted something like this, but its worth a shot and helped me.