Re: Towing 5th Wheel over mountain passes
From towing in hills (but not mountains, yet) a big cougar trailer, I always put the tow/haul button in, set the cruise at 60, and let the computer decide when to shift. It automatically downshifts to keep the set speed, at least in the hills I've driven in. If the hills were bigger, or I were in mountains, I'd definitely manually shift if I felt I was having to do anything other than touching the brakes.
Riding the brakes = heat = failure, so downshifting then becomes essential.
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[Tundra Bay]
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Radiant Red
2007 Double Cab Limited w/Graphite Leather Interior
Factory Nav, Sonar, and 10 spkr 440W JBL stereo with Sirius (sweet)
Cold Weather Pkg and Block Heater. Brushed SS Stepboards,
Tires: BFG All Terrain T/A KO LT265 65 R 18, Diamondback Tonneau Cover.
Curt Front Receiver, custom 8" extension, & Warn 8000lb winch back/front mountable,
Tekonsha Prodigy Brake Controller DSP 16,000 lb 5th wheel hitch Firestone Ride Rite 2445 Air Bags
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