I know that the 1500 series trucks are the 1/2 ton versions and the 2500 series are the 3/4 ton series.

My understanding is that the primary differences are the structural integrity, suspension strength, etc.; with the 2500 being the truck of choice (of the two) for towing.

Now, when it comes to the Suburban 1500 with the 6.5 diesel, I hear that because it has the diesel that the rear end is the same as the 2500. (right?)

Do the 1500's typically have higher gear ratio backends?

So - besides a lighter duty suspension what else is different?

I'm trying to figure out if I need/want a 2500 or a 1500 - I know I'm going diesel.

If I get the 1500 could I just put some air shocks on it to improve it's handling of heavy towing jobs?

If I ever wanted to convert this burb to a cummins would the 1500 handle the conversion?

It will tow but I think the 1500 diesel is only at 7500lbs. Where as the 2500 suburban would be more of the 10K - 12K lbs for towing. Don't get me wrong, but the 1500 with the 6.5TD will actually pull heavier loads. I had a 95 model and loved it. When the sub comes out with the dmax, I will definately get one. The 6.5TD will need some extra power. It is only 190hp. You will have to move the PMD as it's location always cause it to have issues with heat. The connector begins to expand and causes intermittent issues.