diff gear variations

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02-17-2011, 03:49 PM

flexin91xj

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Year: 1991 (2-door)

Model: Cherokee

Engine: 4.0L

diff gear variations

I'm noticing a difference in gear ratio variations from Dana diffs and Ford diffs. My concern is if I have 3.73s in my front dana 30 and 3.70s in my rear Ford 9 inch, will I blow something up? How much variation can I have between the two diffs? I know it's best to have them match, but there's no matching gears between a Dana 30 and a Ford 9 inch.

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02-17-2011, 05:56 PM

mentalbreakdown00

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Year: 1995

Model: Cherokee

Engine: 4.0L

I would say your fine unless you try a 4 wheel burnout on pavement.

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02-17-2011, 05:58 PM

Phatwitaph

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Year: 1998

Model: Cherokee

Engine: 4.0

something that small is okay, and wont hurt anything imo

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02-17-2011, 07:24 PM

Gorillaxj

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Year: 2000

Model: Cherokee

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you will be fine off-road. just be gentle when on pavement. but low tire pressure would probably make a bigger deal then ".03" in ration difference. if you cant get closer of a match run it.