Gm Awd Express And Savana Question

[katoom400]

Hi,

 

I've been trying to find out just what the exact differences are between the 1500 and 2500 AWD vans. I've asked this before and gotten the typical generic responses: "the 2500 is a heavier duty truck"......I know the 2500 has more towing capacity and possibly 8 lug wheels. One person suggested that the only difference was heavier rear springs? I'm currently looking at 2 used 2003 vans, one is a 1500 at a good price the other is 2500 @ about 2k more (less miles). I've always owned heavy duty vans, but never a GM, the salesman tells me it's heavier duty, the owner can't give me real specs so I would like to know from a GM tech, really what the differences are in the tranny\driveline and suspension of the AWD vans?

 

Also why did GM stop offering the AWD in the 2500 series after 04?

 

Thanks,

 

Andy