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When in Tow haul mode your torque converter locks up in 2nd gear which also help with the heat. Also the allison has the grade braking feature that does wonder for slowing you on down hill runs.
__________________ KYLE  05 Chevy LLY Crew Cab LT Dually 4x4 with lots of go fast goodies!!! Suncoast Tranny, TTS lift pumps, 5" straight pipe, and much more!!! Send me a PM if you want more info on my mods. EFI Live Tuned by IdahoRob!!!! |