towing capacity 2001 GMC Yukon XL 8.1 liter engine

the basic question I'm asking for first off is not for your permission to tow with a vehicle that I have I'm asking people who have had the same engines what have they towed safely when they're gone over there limits as suggested by the manufacturer. and if people are honest we can all agree that at some point we've come close to or we've gone over are towing limits.