rockhillmanor wrote:
Been there did that ONCE on I70 in Tulsa with the Tahoe.
And if you had a Suburban the same thing was likely to happen. With the GMT400 and GMT800 based Suburban/Tahoes the ratio of the wheelbase to the rear overhang is darn near the same if it isn't the same. Therefore, all other things being equal (and they pretty much are on the 1/2 tons) they will tow the same. I haven't checked the ratio of the GMT900's, but I assume it hasn't changed.
Now, I understand that there are people that claim they have moved from a Tahoe to a 1/2 ton Suburban and there was a night and day improvement in towing. This was either perceived because they thought the longer wheelbase would help and just thought it did or there is some other function going on between the two vehicles. If someone has a enough $$$ laying around for me to buy a couple different versions of Tahoes and Suburbans I would love to do a controlled study with scientific data to answer the question.
To the OP, with that said, get the vehicle that you like best and fulfills the needs you have. We had two Suburbans and having the extra room behind the third row is really nice.