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Hey guys I was just wondering what is the difference between a 2500 and 2500HD? What features make it a HD model?
 

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A 2500HD has stiffer springs and I believe the frame is heavier. I know that the HDs have a 2" body lift to make room for the allison. I think the rear end is bigger too. Basically the 2500HD is pretty close to a one ton truck. The HD also is the only 3/4 ton gm truck that comes with the diesel.
 
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