Just FYI

GM switched to Synchromesh in manual transmissions about a dozen years ago.

The modern GL5 oils were too harsh on brass synchros.

Anyway, Synchromesh might be a vialble alternative.

http://www.pennzoil.com/other-car-p...ear-oil/manual-transmission-fluid/#About
http://www.oreillyauto.com/site/c/d...h_N2281_-1_-1&pt=N2281&ppt=C0207





1954 3600 Chevy Truck
"The Fake Truck"
In the Stovebolt Gallery
More pix on Photobucket