Quote:
Originally Posted by yoda911
...My TV has a tow capacity of 3500lb but the same HP, torque, wheelbase, frame construction, transmission and coolers as some vehicles that have listed capacities twice that...
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There are many factors that go into tow ratings, and manufacturers make different assumptions as they do them. One of the hardest things on a transmission is wind resistance on a hot day. A TrailManor reduces this quite a bit.
I'd guess the Lexus is a lot like my Highlander, and I'd expect it to do pretty well here in the relatively flat lands. I don't know about durability in Denver.
Read the Owners' manual carefully, get real numbers from the truck scale, and keep an eye on your hitch receiver (500# rated receivers use 6 bolts, not 4).