Suburban: What are my limits?

bikendan wrote:
what does the Burb's driver's door yellow sticker say is the payload capacity?

also, you need to figure out what rear end ratio it has.

Are you talking about the sticker with the tire pressure details? (Not yellow on mine.) That says GVWR 7400 lbs. Is that the towing capacity? Gotta say I've never, ever noticed that before.

And how do I figure our the rear end ratio?

That's what drives me nuts. I get the page in the manual with all kinds of different possibilities. How do you narrow it down? I can figure out it's a 1500. It's pretty obvious it's a long wheel base. I know it's a 5.3 engine, but how in the world do I find out about the K5L HD Cooling Pkg? I'm assuming that's reflected by the extra radiator, but I don't see K5L in the three-digit codes in the glove box.