I have 1 set of OEM Honda 3-4 Synchro set from Integra Type-R's. If you're feeling a grind in 3rd or 4rd gear, your synchro is going out. Catch the problem and fix it before you have to replace your whole transmission, or even worse, your whole motor.

These are super hard to find now, and i'm selling them for cheap since I never used it with my rebuild.

Located in San Francisco, price is $200 shipped to anywhere in the 48 states