How good is 67-72 burb for towing?

[hwyix]

I original wanted the 2dr jimmy/blazer, but I searched over there and many people thought the truck was too small to be a good tow car.

Is the 67-72 suburban big enough, strong enough? I know I can upgrade the engine/transmission & brakes to handle anything but is the rest of the truck up to it? I forgot to add this for towing a 3500lb car plus open trailer. I would like to buy an enclosed trailer some day though.

One more question, for you people who lower and c-notch the rear of your truck. Is the frame still just as strong for towing? Or is that something I should just forget about if I plan to tow?

thanks.