Quote Originally Posted by RedRoadRunner View Post

Got (most) of the plugs out, with judicious use of levers, heat, and persuasion. It appears the last bloke loctite'd the plugs in.

Hoping I can get replacement plugs. I'm sure I can find the fill plugs. I might have to re-use the magnetic drain plugs (they're a bit less !"£$d in any case)

I was going to do the whole lot (Gearbox, Transfer case, & diffs) with Penrite 80w90. (Again, it's the same thing all through the lux & my mate's cars*, so I don't have to think about it and try to remember what goes where.)
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Don't use any thread lockers. You can use a thin layer of silicon or teflon tape is even better.

Rear diff is an LSD, so make sure you use LSD diff oil.

Why do you need replacement plugs??!! Old plugs are ok unless you've damaged them.