My QC came with the "Heavy Duty Service Group" which comes with 750 amp battery, Transmission cooler and Engine Cooling - Heavy Duty. The question here is What part of the engine cooling is heavy duty? Larger Radatior, larger water pump? There is a electric fan between the radatior and engine fan, is this for the A/C or part of the heavy duty cooling?
Thanks,
Don Mallett
Fort Worth, TX
www.geocities.com/maldbnsf
'00 QC 4x2 SLT+, 4.7L, 3.55 rear, 4 speed auto, H/D Service Group, K&N home brew air filter, Cat back Flow-Pro Dual System, Mobil 1 Oil & Gear lub., Oil cooler, 180 T-stat, Tonneau cover, Autolite 3923 plugs.
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