Type of gear oil XJ

[XJ Wheeler]

I went with 75w90. It's a bit more common, and is actually the recommended fluid for these. It's hard to find without the Lsd additive but won't hurt anything if you don't have a limited slip. It's also recommended to run 75w140 in the rear if you tow but I don't tow and I like carrying one bottle for my spare for both axles.

The gasket really isn't necessary and is a waste of money. I went with ultra black rtv. You'll want something oil resistant. Also, you can go with the Lubelocker gasket which is reusable (not sure how many times though, I bet not a ton) so you don't have to deal with scraping the gasket surfaces. There is a higher buy in though.

Dexron III is perfect for the 231. Been running it for years.

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