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Axel Ratio?

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Old Sep 7, 2009 | 12:15 PM
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mhays2
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Axel Ratio?
How does one determine what axel ratio the rear differential is (assuming it is as it came from the factory)?
 
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Old Sep 7, 2009 | 03:37 PM
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There is an Axel code on the driver side door jamb, do a search under axel codes and you will see what ratio you have.
 
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Old Sep 7, 2009 | 03:51 PM
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What he said, or easiest way is to just crawl under and look at the tag on the cover, it will say the ratio. If it has an "L" after it it means its locking.
 
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Old Sep 7, 2009 | 04:15 PM
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most are 3.73
 
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Old Sep 7, 2009 | 04:23 PM
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Mine was a "D1" (on the door-jamb) which is a 3.73 LS.

Thanks all, for your help.
 
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Old Sep 7, 2009 | 04:58 PM
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Yeah im not sure about the earlier trucks, but I know ones like mine only were available with 3.73
 
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Old Sep 9, 2009 | 08:42 AM
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Most PSD trucks will be 3.73 the gassers came with 4.10. DRW trucks can get the 4.30 with the Tow Boss packages.
 
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