2010 SR5 Towing w/tow package

2010 sr5 w/ tow package 5.7. Hauling a 7.1 Travel Trailor. The VIN comes up as max tow 8.3. but it has a tow package and is not listed in the Toyota system or the sticker. I have the radiator cooler, hitch, 7 pin connector. I have a 10klb E2 weight distribution/ sway hitch. I have a 3.5 Rough Country lift.

I towed the RV just fine no issue or over heating over 60 miles flat highway 50-60mph. No sagging. should I replace the factory leaf springs or have air bags installed. with this being said any other advice would be helpful. thanks

 

I have Air Lift bags on my '07 SR5 to level the stone stock suspension on my truck after hooking up my trailers - RV and horse - If you don't have sagging or need to correct a problem, why do anything?

 

Not so much worried about the actual towing but the longevity and wear and tear on 2010 w/ 173k miles.

 

Have owned my '07 since new. Every time I start it, hook up and tow somewhere, I introduce a little more wear and tear. Stay on top of maintenance and repairs. Drive it until.......... You'll get lots of opinions on when to replace a vehicle, but, excluding a catastrophic drivetrain failure, I will likely drive my Tundra into MY grave. And even then it would likely be more cost effective to to replace an engine or transmission than buy another used truck with an unknown history, or, a new truck. I bought my Tundra to tow. It does that well. It still looks good, drives well, and has been ultra reliable. Just don't worry about wear and tear, it's the just consequence of using your truck for its intended use.