Tuesday, April 7, 2020

1973-1987 Chevy C10 and GMC Truck Buyer’s Guide

"The slang name is "square-body," and there are a lot of good reasons to buy a 1973 to 1987 Chevy C10 or GMC truck. ...
The Chevy C10's 15-year production span from 1973 to 1987 left 10 million good used trucks in the world with a lot of great OEM and aftermarket parts to service, restore, or customize with.
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It's because of the 15-year production period with a lot of trucks produced that the prices have stayed relatively low on 1973 to 1987 builder Chevy C10 trucks.
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 most customized square-bodies end up with a LS or Vortec swap that produces twice the horsepower and far lower emissions than 1976 to 1986 Chevy C10 trucks.
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The early standard-equipment square-body C10s had weak frames that twist. The solution is to buy a Big 10 or Heavy Half with the F44 package, which in C10 shortbed or longbed form has heavier-duty framerails and crossmembers. Look inside the glovebox door for the SPID (paper sticker) and check for the F44 option. Any C10 with a 454 will automatically have the F44 option—it was mandatory. And a 350-powered Big 10 will have the F44 package.
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Not a C10 but well worth mentioning, 1973 was the first year for a C20 or C30 crew cab built in-house by Chevrolet rather than an outside contractor's custom shop. Dual rear wheels were an option and the most common configuration to be found in the used Chevy C20 and C30 market. The Cheyenne Super was the most deluxe interior available for a Crew Cab in 1973.
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The last year for square-body C10 production was 1986 because in 1987 with the introduction TBI fuel injection and the 700R4 four-speed automatic transmission Chevrolet changed the C10 series designation to R10.
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1975 was a bad year for American cars in general but a great year for Chevy C10 trucks."

https://www.hotrod.com/articles/1980s-c10-buyers-guide/

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