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Originally Posted by GlennWest
...... Those of you with the 6 speeds should use 5th when pulling your MS. It will actually hurt mpg. Engine won't have the rpms it needs to make the needed torque required to pull that much weight.......
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Duramax LMM develops maximum torque - 660 ft-lb @ 1600 RPM -- my stated cruising RPM. In any case I let the transmission decide. That's why we buy automatics.
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RodeWorthy
'07 Mobile Suites 36RS3 #3910
Mor/ryde IS, Trailersaver TS3 hitch
Level-Up with Remote Control
4 x 135W Solar Panels, Outback Controller, 4 x 6V batteries, Xantrex Inverter/Charger
'08 Chevy 3500 dually Duramax/Allison
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