Thats why we have trucks with 4 rear wheels lol.Actually those tires together will hold around 3700lbs. I can say youll be putting around 1500lbs on the bumper alone, add the weight of a lillte less than half of your truck and see what you have. Itll be close.
I use to tow my car trailer with a fullsize truck on it rolling 20s with a 255/35/20.....you shouldnt have any problems with the 265/35/22. Consider this, thats the same size tire that we run on duallys with 22"s on them.....