Many moons ago, I was a service advisor for a Chevy dealership.
The 2-wheel drive trucks/suburban/Tahoe's were all "C" s. The 4WD was a "K".
All Cs were the same frame and all Ks were the same frame. 1500, 2500 and 3500 distinguishes 1/2 ton, 3/4 and 1-ton.
A C1500 is the same as a Suburban only a different body
The 2-wheel drive trucks/suburban/Tahoe's were all "C" s. The 4WD was a "K".
All Cs were the same frame and all Ks were the same frame. 1500, 2500 and 3500 distinguishes 1/2 ton, 3/4 and 1-ton.
A C1500 is the same as a Suburban only a different body