Re: WD-9 and 1/2 ton truck
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I can compare the different era of trucks personally. My 1979 C20 "heavy" 3/4 ton flexes as chevytaHOE5674 describes. My 2001 K1500 does not. It is documented (Google will find the answers) that frames are 40-70% stiffer today compared to 20-30 years ago. The only way the C20 is heavier is the 9 leaf spring packs and the massive 14 bolt, 10 1/2" ring pumpkin. Heck, my Fathers 1998 8600 GVW 3/4 ton flexes more than my K1500. There was improvements made between just those 3 years.
I also can compare the old 165 hp 350, Quadrajet 4bbl to the modern 5.3L 285 hp in my K1500. True the power is made at higher RPM. Both of these trucks have 265/75R16 tires, 3.73 gears, and automatic transmissions. The 350 is a DOG compared to the 5.3L. Both truck tow at the same RPM, this is apples and apples (I do not tow in OD).
I was going to re-power the 1979 with a 383 stroker 454, but have decided to drop a full computer 5.3L instead. I may or may not keep the TH400. I feel that is all the engine I need with 3.73 gears towing up to 12-15K lbs.
This is not a "lot special" 1/2 ton. It was bought to tow a large camper originally and was wet up to do so. I just don't camp much anymore, I like tractors! 8)
2001 K1500, CAT scale ticket said 17,760 total gross
1979 C20 My old faithfull - THE BEAST, Retired
The black one wins the towing competitions.
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