CK5
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HD or not?

I have a 2500HD, it has a 14FF most of the 2500s i see have the 14SF beside that im not sure what is different, mine also has a tranny temp gauage and a tow/haul adjustment i can make in cab for those reasons
 
The only engine choice is the 6.0. That is why they only have the 9.5" rear, and 8600 GVW instead of the 9200 rating of the HD.
 
The biggest difference in my book is that the duramax diesel is only available in the HD.
 

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