You need to do some cross checking on the MS 4.90s going into an earlier Gen II Montero. Yours likley has the smaller axles than the later 1990s and I'm not sure the MS's R&P will fit.

Similalry, the Aussie 3.15s were for the later Gen II's bigger t-case. You'd be looking at 2.85s old style, or the now "common ratio" 2.70s.

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