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Published on Jul 2, 2010
Hwy 395 South In N Calif. was about 8 miles of 6% down grade easly held the hill with out brakes using tow haul mode and engien brake , GVW 28000 Lbs 43 x102 toy hauler . Most of the hills I had to take it out of tow haul mode becouse it down shifted and slowed it too much . 100% stock truck 2008-09 6.7 6 speed auto 9000 miles