Ironic time for you to ask this question as I am planning on trading her in for a Tundra in the next 48 hrs. We towed an R-Pod last July that was approximately 3500lbs (fully loaded) through some hills between Fairbanks and Yukon River and it was not a fun time. Engine struggled on hills and tranny temp reached 237°F [emoji855] . Temps sat around 200-220 on other hills; Not very good numbers. This was with me babying it mind you.
Other than the struggling engine and tranny temps I must say, she handled it well otherwise. Even without anti-sway or weight distrubution hitches I always felt in control of the load and never truly felt like the engine was going to die from it. Tongue weight was minimal too so there was very little sag in the back and I only bottomed out a few times on some absolutely terrible dirt roads. Regardless, it wasn't an enjoyable towing experience.....
If you outfit your rig with a transmission cooler, get something to monitor your tranny temps (I use BT ODBII adapter and the Torque Pro app), maybe get some SuperSprings, Airbags or Timbrens on the back, weight distribution hitch, and only tow that 4300lbs on flat-ish highways you'll manage.....
But seriously, I personally would never make that decision. I started outfiting my truck with all of these items and quickly realized I'm turning a fun off-roader into a towing machine that it was never really intended to be. I want towing to be easy, and I plan on doing more, so I'm just throwing down the cash to get a big 'ol Tundra.
If you do go this route I wish the best for ya! YMMV. Me? I want the extra space, power, and bed. Good luck to you!
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