I know beat a dead horse, but I thought I would add these attachments with sources noted in red. Funny the actual Pantera Owners Manual lists GL-5 for the trans, then there is the Pantera Technical Service Bulletins and the Pantera Technical Information. When EP (Extreme Pressure) is mentioned I read elsewhere that GL-5 is a higher EP than GL-4 but maybe both are applicable when the manual states "EP".
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