I've been reading a lot about this subject on the net recently, and thought a few might find this info an eye opener. It was one for me:

Here is one of the many postings:
http://www.buckeyetriumphs.org/techn...GearboxLub.htm

But if you go to Google advanced search and search for the words GL-4, oil, you will find a lot of postings.

Now, I know why my tranny started acting up right after a clutch job that included an oil change 60000 miles ago, without any pre-symptoms.

Geza