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  #1  
Old 10-31-2019, 10:43 PM
bow75 bow75 is offline
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Join Date: Aug 2012
Location: Willmar, Mn.
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Default gear ratio

How do I know what the gear ratio is on my truck? I bought it used, it's a 2017 chev 2500 HD 6.0 gas, crew cab. Thanks.
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  #2  
Old 10-31-2019, 11:58 PM
Seaark1660 Seaark1660 is offline
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Join Date: Dec 2011
Posts: 145
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There is a sticker in the glove box with all the RPO codes.G80 would be locking differential for example.
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  #3  
Old 11-01-2019, 07:27 AM
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Clairebear Clairebear is offline
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Join Date: Feb 2014
Location: South West Ontario
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Just go to a dealer and they will input the VIN # and possibly print off the line sheet. I bought a used F-350 and asked a dealer and they printed it and he printed out all of the warranty work completed and he printed a list of all the service bulletins for the truck. If the previous owner ignored the service bulletins then dealer should follow thru if your truck is still under warranty.
Mine was free but even if they charge you a bit it will be nice to have all that info.

Hope this helps
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  #4  
Old 11-01-2019, 09:52 AM
Gone Again Gone Again is offline
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Location: Central Wisconsin
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Check glove box sticker for codes.

https://www.google.com/search?q=gm+g...hrome&ie=UTF-8
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  #5  
Old 11-01-2019, 11:34 AM
REW REW is offline
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Copy the comment on the vin number to the dealer for a print out of your vehicle.

The deailer will give you a print out of the build document for you vehicle, along with all of the specifics on the drive train, engine and transmission.

Take care
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  #6  
Old 11-01-2019, 01:54 PM
x4flatfish x4flatfish is offline
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Jack the truck up. (follow all safety precautions) With the trans in neutral. Rotate a rear wheel 1 revolution while counting the number of times the driveshaft rotates. IE 1 tire rotation and 3.5 driveshaft rotations would indicate a 3.5 gear ratio. Having said all that may be easier to do what previous posters have said...
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  #7  
Old 11-01-2019, 05:07 PM
bow75 bow75 is offline
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Join Date: Aug 2012
Location: Willmar, Mn.
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Default thanks

thanks to all, I found it 4:10's
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