Anyone else have a 67 K25 with 10000lb GVW?

[RedRoad]

Looking at all the options available at the time as mentioned the tires would be the hard thing to get to be rated at 10K. All of the chevy literature pretty much requires dually rear end. Was there any difference in the C&C axles vs K20? Wonder if the duals got swapped out at some time after the tank or pump beds were removed. The LW code does list C30 4.57 gears and all the lists show a C30 axle as 7200.

Clinton said his had all 4 9.75x16.5 wheels, I dont even see that as an option at least on the chevy literature.

If I was the engineer that got tasked with building a 10000lb GVW 4x4 with off the shelf parts at the factory I would do what appears they did.

High torque engine
HD Dana 44 front axle
Increased rate front and rear springs with rear overloads
Dually? or larger wheel tire option
Power Brakes
Power Steering? I thought most were removed early due to leaks
HD HO72 with optional 4.57 gears (surprised it wasnt 5.13s)
Locker?
HD 4 speed transmission w/drive shaft parking brake
HD radiator
HD front and rear shocks


other than tires the other weak link in the 67-68 trucks was the new tapered spring design. As you can tell the amount of leaves needed to bring up the rating was pretty extreme.