thanks

Maybe I'll go look at the GMC 3500 Crew Cab. Sounds like a bargin at $49,879 before employee pricing and any other discounts that may be available. (not...) Actually a friend of mine is selling his 2004 with pretty low miles, it might be time for a chat..
Engine, Duramax 6600 Turbo Diesel V8, with Automatic Transmissions 300 HP [223.8 kW] @ 3000 rpm, 520 lb.-ft. [702.0 N-m] @ 1600 rpm) (with Automatic Transmissions 310 HP [231.2 kW] @ 3000 rpm, 605 lb.-ft. [816.8 N-m] @ 1600 rpm) (LLY)
GENERATOR
Alternators, dual 105 amp (MSRP =$224.00), Provides 210 amps total alternator power from a dual 105 amp alternator system. (8X5) $224.00
GVW RATING
GVWR, 11,400 lbs. (5171 kg), includes dual rear wheels (C7W) $0.00
GVWR, 9900 lbs. (4490 kg), includes single rear wheels (C4M) $0.00
HEATER ENG
Engine block heater (K05) $0.00
HEAVY DUTY POWER PACKAGE
Heavy-Duty Power Package, includes (LLY) Engine, Duramax 6600 Turbo Diesel V8, (M74) Transmission, Allison 1000 5-speed automatic and (G80) Differential, automatic locking, heavy-duty, rear (PDN) $6,805.00
LOCKING DIFFERENTIAL, REAR
Differential, automatic, locking, heavy-duty, rear (G80) $0.00
TRANSFER CASE
Transfer case, electronic shift, includes push-button controls (NP1) $0.00
TRANSMISSION
Transmission, Allison 1000 5-speed automatic, electronically controlled with overdrive and electronic engine grade braking, includes tow/haul mode selector and (KNP) Cooling, external transmission oil cooler (M74) $0.00
TRANSMISSION COOLING SYSTEM
Cooling, external transmission oil cooler, auxiliary, heavy-duty air-to-oil (KNP) $0.00