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2003 Silverado Transmission?

Blackshadow

By Blackshadow
January 7, 2017 in 2000-2014 Silverado HD & Sierra HD

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Blackshadow

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Blackshadow

Posted January 7, 2017

Posted January 7, 2017

I just bought a 2003 Chevy Silverado 3500 w/ 6 speed manual transmission. 8.1 Engine. I can't seem to find out what transmission I have. I found a code list but mine doesn't seem to be on it. The only code that has a M in it is ML6. Any help is appreciated

Enthusiast

Formulabruce

Posted January 8, 2017

Posted January 8, 2017

That is a ZF S6-650 Transmission . 8.1 or Duramax only.. Its the standard Trans, and the Allison is Optional

Senior Enthusiast

Chris

Posted January 8, 2017

Posted January 8, 2017

It is the ZF made S6-650 https://en.m.wikipedia.org/wiki/ZF_S6-650_transmission

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