The C designates 2 wheel drive the K designates 4 wheel drive.
A c10 is 2 wheel drive and the k10s are 4 wheel drive.
1986 Chevrolet c10
A whole lot. K10 is a half ton, and all the running gear is small and lite. The K20 is a 3/4 ton and everything about it is heavy and tough.
R10 was used instead of C10 in the later years of the squre bodied chevys to designate them as fuel injected
The 1986 C10 (which I have) are interchangeable with the 1973-1987 C10, C20 and C30 and also many parts on the K10, K20 and K30. Depends on which parts but most of the body, interior and beds are interchangeable. You can also exchange sone body parts with the K5 blazer and the C10 to C30/K10 to K30 Suburban like hoods, fenders, bumpers, doors, seats (the blazer and the suburbans had bucket seats) All other parts you can order new in exhausting detail from http://www.lmctruck.com
the k5's are Chevy blazers and a k10 is a 1/2 ton Chevy pickup
The model is different, but the vehicles function the same.
The primary difference between the 1983 Chevy K10 and K20 lies in their payload capacities and drivetrain configurations. The K10 is a 1/2-ton truck, designed for lighter loads, while the K20 is a 3/4-ton truck, offering a higher payload capacity and typically a more robust suspension. Additionally, the K20 may come with heavier-duty components and options for four-wheel drive, making it better suited for off-road and towing applications. Overall, the K20 is built for more demanding use compared to the K10.
The C10 (two-wheel-drive) and K10 (four-wheel-drive) with a 6-1/2-ft. box came on a 117-1/2-in. wheelbase.The C10/K10 pickups with an 8-ft. box had a 131-1/2-in. wheelbase, also used for many 1/2-ton chassis models and C30 models. The C20/K20 trucks, except Suburbans, were on a 127-in. wheelbase.
The C-10 is a 1/2 ton, and the c-20 is a 3/4 ton.
With only that info it could be, 1970, 350ci, 255 HP, 4 bbls, K10 & K20, C10 to 3500, standard 3 spd or a/t, or 1979, 350ci, 165 HP, 4 bbls, C10 to 2500, conv. cab, manual trans, fed.
A C10 or a K20, 8000 lbs. A K10 is 6500 lbs. A C20 is 10,000 lbs and C30 is 12,000 lbs. This is from a 1979 Burb owners manual.