I haven't drove my truck on the freeway yet, but I think 4:30 gears are AWESOME. You don't buy a 5.7 tundra for gas milage, so might as well beef up the gears for towing. Not that I will be doing it, but even at 10k pounds, I feel the tow rating on these trucks could be quite a bit more. The ram CC 4X4 5.7 with 3.92 gears is rated at 10,300...with the 4.30 of the toyota, I would think 11k tow rating would be more in line.
As far as the mirrors go - no they don't extend. However you can pick up power extendend able tow mirrors that are plug and play. I saw a set online today for $250. Kind of look like Ford's SD mirrors.
When I buy tires, they will for sure be E rated to help with towing as well as better side puncture resistance as the BFG has a 3 ply side wall.
