Cooling, external engine oil cooler, heavy-duty air-to-oil, integral to driver side of radiator tank
Cooling, internal transmission oil cooler, water-to-oil, integral to driver side of radiator tank (Included and only available with (MT1) Transmission, 4-speed automatic, heavy-duty and (M74) Transmission, Allison 1000 5-speed automatic)
Cooling, external transmission oil cooler, auxiliary, heavy-duty air-to-oil (Included and only available with (MT1) Transmission, 4-speed automatic, heavy-duty and (M74) Transmission, Allison 1000 5-speed automatic)
Rear axle, 4.10 ratio
Battery, heavy-duty, 600 cold-cranking amps, includes rundown protection and retained accessory power (Not standard with (LLY) Engine, Duramax 6600 Turbo Diesel V8)
This 05 GMC Sierra 2500 is a great find! For the people that want an older truck you couldn't ask for better, with the tougher frame and heavier body that can't compare to vehicles today this truck will get you far. We all joke that they don't make t...
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