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Old 11-08-2015, 08:11 PM   #1
2mas
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Join Date: Jun 2011
Location: Sweden
Posts: 126
Duramax swap - Rear axle gear in c10?

Hi,
I'm doing a Duramax swap into my 65 c10.
Now I need to program the ECM to get the speedometer to show the right values.
I've been looking at old threads on gears. My 65 C10 had a V8 auto. Do you know what gear it has in the rear end?

I can read HA0415W on the axle, but I cannot find anything on it.
When turning the drive shaft 2 revolutions the wheel rotates almost one turn (one wheel in the air)

/Thomas
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1965 c10 BBW LWB - Duramax
2010 Camaro SS - Whipple (721hp)
2017 Volvo V60 diesel-hybrid (233hp)
2008 volvo XC70 diesel

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