Safest plan for tranny and road handling/braking is not towing more than half your max tow rating. As you approach the max rating wear and tear and safety are affected. Also, subtract 10-15% of (trailer weight + tank + water) as part of your Lexus’ payload capacity. Towing weight is what it pulls, payload capacity is what you can carry including people and gear IN the vehicle. So that’s two different calculations. And yes you want an axle that can handle your load with a little room.
Only towing 1 mile?
Only towing 1 mile?