Transfer Case Fluid ?
Changed mine at 40k and it was dirty in my opinion. About to change it again at 80K.
Front and rear diffs take 235.7 or 235.74 for newer trucks. Mercedes brand 75w85 hyphoid diff oil satisfies both specs.
Always remove the top plug first....
Last edited by alx; Aug 5, 2015 at 10:49 PM.







