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1973-1987 Chevrolet & GMC Square Body / Rounded Line Pickups

General and technical discussion for 1973 through 1987 Chevrolet and GMC pickup trucks. These years were otherwise known as "square body" pickups, although GM officially called them "rounded line" designs. Parts wanted and for sale encouraged.

283 topics in this forum

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  1. 87 K1500 Step Side

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  2. 83 1/2 ton rust problems/build

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  3. NO POWER

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  4. Vapor lock?

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  5. Power to fuel pump

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  6. 79 K10 EFI options

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  7. 1981 C10

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  8. NEW MEMBER

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  9. 1978 Sierra Classic

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  10. 76 C10 Stepside

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  11. No fuel 1 2

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  12. 1978 GMC Royal Sierra

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  13. Longer legs

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  14. 4l80e

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