what is the realistic towing capcity for a 2002 chevy suburban 4x4 with the tow/haul package?

Answer 1

Hi,
Not exactly sure, to be honest, but having used a very similar vehicle across dodgy terrain in the Mid-East, I found it would reasonaby tug about 2000kg, 2 tonnes metric, or 2ish tons Imperial weight, without struggling too badly.
Given good tyres, a following breeze, and a sound towball arrangement. Oh, and plenty right foot on the pedal from time to time.
Managed to get the arrangement up to around 85mph on tarmac, but it started to weave around a bit. Don't recommend it.
So, as you ask, I would stick to an all-up towing weight of, say,
1 ton to be on the safe side of things.
Don't blame me if it goes wobbly though. And best of luck.
Yours, Bob the Boat

Answer 2

I would guess 4000 lbs: the weight of a car on a trailer but don't travel faster than 45 mph. If you want to travel faster, like 65 mph, then maybe 1000 lbs.