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IIRC models owned, you’re currently running 3.9 : 1 GU factory 3.0L Wagon Poopsie Mate?
PeeBee & Rossco here are super happy with their Marks 4wd 5th gear cog upgrades on their moderate/bigger diesels. If it were me I’d seriously investigate PeeBee’s lead further as 3.5 : 1 on steep bush tracks with an LS1 might run away a tad more than your needs unknown?
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