like terry said, above, no problems with them. Had bought a gsr tranny from lht with grinding 3rd gear. It was too expensive to change the entire gear which is what honda/acura sells... found the synchros on the ebay store, all 5, with some carbon coated, some brass only (pretty sure it was the same as what 97clean said). came within a week or so. Works flawlessly. Terry did the install, if u have more questions.

synchros in tranny for about 6 months. Not a single prob in terms of gears slipping or grinding (other than my own mistakes when missing a gear or something... lol).

hope that helps