The only gear oil they had at the store was royal purple max gear 75w-140. It does not say gl-5 on the bottle, but on the website is says it is gl-4 and gl-5. Is it safe for the diffs and is it a good oil?
https://www.google.com/amp/s/royalpurpledirect.com/amp/max-gear-75w-140-high-synthetic-gear-oil/
2005 Rubicon
https://www.google.com/amp/s/royalpurpledirect.com/amp/max-gear-75w-140-high-synthetic-gear-oil/
2005 Rubicon
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