Any Differences between C-20 & C30 Drop Spindles?

[Beeline67]

A friend of mine is selling a NEW Pair of Chevy C-30 / 1-Ton, 2 1/2" Drop Spindles for a 1973 to 1991 Chevy.

I want to put them on my 71 C-20 / 3/4 Ton Burb, but was curious what all I would have to do to make them work.

I know I would probably have to swap out my Upper / Lower Ball Joints to 1973 to 1991 Ball Joints to make them fit.

I want to avoid useing the 8 Lug C-30 Disc Brake Rotors. I'm curious if C-20 6 Lug Disc Brake Rotors would fit on the C-30 Drop Spindle Shafts? And will the C-20 Calipers bolt up to the C-30 Spindles?

Anything else I need to know about this Spindle Swap?

Any advise from my "C-Family" would GREATLY Appreciated!



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1967 Chevy C-10 LWB PROJECT NAME: "BEELINE67" ~UNDER CONSTRUCTION~
1968 Chevy C-10 SWB PROJECT NAME: "HIGHWAY 666"
1968 Chevy C-10 LWB PROJECT NAME: "RUNDLE RUNNER"
1968 Chevy Camaro SS/RS
1970 Buick Skylark Custom
1970 Dodge SuperBee
1970 Plymouth RoadRunner "John 3:16"
1971 Chevy C-20 Surburban
1971 Chevy C-10 SWB
1972 Chevy K/5 Blazer 4X4
1972 GMC C-10 SWB
1972 Chevelle Malibu
1985 Chevy Monte Carlo SS
1987 Chevy Silverado C-10 4x4