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Old 02-21-2010, 09:19 PM   #4
RMS
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Join Date: Feb 2010
Posts: 5
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If you crawl under the tuck there should be a tag on the axle that will tell you what axle it is and what the current gear ration is. Today manufactures use commecially available axles and generally do not build there own axles. Any good truck axle shop can probably change the axle ratio.
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