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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.


347 topics in this forum

  1. '75 Fuel Troubles

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    • 1 reply
    • 5.1k views
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    • 1.4k views
  2. 1977 C10 Engine Swap

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  3. 1977 chevy c10

    • 5 replies
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    • 878 views
    • 3 replies
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  4. 1978 GMC Royal Sierra

    • 3 replies
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    • 6 replies
    • 2.3k views
    • 0 replies
    • 707 views
  5. 1978 k10 Survivor

    • 14 replies
    • 1.5k views
    • 7 replies
    • 990 views
  6. 1978 Sierra Classic

    • 1 reply
    • 324 views
    • 1 reply
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    • 8 replies
    • 1.3k views
    • 0 replies
    • 1.6k views
    • 0 replies
    • 485 views


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