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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.


376 topics in this forum

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  1. 83 1/2 ton rust problems/build

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    • 1 reply
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  2. NO POWER

    • 4 replies
    • 387 views
  3. Clutch linkage

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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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    • 809 views
  9. 1978 Sierra Classic

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    • 509 views
  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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    • 385 views
  14. 4l80e

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    • 501 views
  15. Tranny problems 1 2

    • 20 replies
    • 2.3k views
  16. Starting problems

    • 2 replies
    • 497 views
    • 1 reply
    • 8.5k views


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