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"C5" Axle Code on door means what?

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Old Nov 11, 2003 | 12:51 AM
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SPODEBOY's Avatar
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"C5" Axle Code on door means what?

.....My truck had it's diff covers replaced before I had purchased it. The gear ratio tags are gone. The door says C5. Is that 3:73's?
.....I run 36's and tow 12k. Need some gearing to accomodate the hill I pull everytime I come home from a trip. 60 minutes up everytime, to 8000 ft level.
Thanks in advance guys.
Spode.
 
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Old Nov 11, 2003 | 02:13 AM
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C5 is the same axle code I have: 4.10 ratio, limited slip. At least that's what it was for pre '99 trucks. You don't specify your model year, so if yours is a Superduty, it is possibly different.
 
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Old Nov 11, 2003 | 10:12 AM
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I think mine is 31. I have an 03 Superduty, 3.73s open diffs.
 

Last edited by FoMoCo136; Nov 11, 2003 at 10:17 AM.
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