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If you can't find it local I have Penn 80/90 GL4. Syncromesh will work fine, but is more prone to leaking.
Dan



Just picked up some Delco synchromesh to replace to the GL5 gear oil that i put in....why is it that it is more prone to leaking? im assuming because its thinner? Everything at the parts store is GL5 for gear oil, so i got the synchromesh instead