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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.

377 topics in this forum

  1. 1986 sierra 2500 length

    By 03blackz71,
    • 2 replies
    • 736 views

  3. 86 Jimmy

    By Semikrazy,
    • 3 replies
    • 1.2k views

  4. 87 s15 window guides

    By Kylefisher2488,
    • 1 reply
    • 1k views

  5. 75 C20 Turn Signal Hardware question

    By 96740,
    • 1 reply
    • 952 views

  6. Suspension rebuild kit for 1982 K3500

    By bigblue82,   
    • 0 replies
    • 987 views

  7. Blowers

    By daleone3,
    • 0 replies
    • 830 views

  8. Trans Question

    By metallica701,
    • 0 replies
    • 848 views

  9. Keep or ditch cab visor?

    By fate0311,
    • 8 replies
    • 7k views

  10. 1979 GMC Crew Cab

    By revrnd,
    • 1 reply
    • 4.2k views

  11. vapor canister full of fuel

    By lanky86,
    • 0 replies
    • 1.1k views

  12. Radiator for a 1982 K2500

    By Logan Lanfear,   
    • 0 replies
    • 1.5k views

  13. Just bought a 1982 GMC K2500

    By Logan Lanfear,   
    • 1 reply
    • 2.1k views

  14. 85 Chev Starter Trouble

    By StepsideGMC,   
    • 0 replies
    • 2k views

  15. Rally wheels!

    By snapring6r,
    • 0 replies
    • 1.7k views

  16. K5 Blazer sliding Windows for trade

    By theoriginalgregs,
    • 0 replies
    • 1.2k views

  17. 4x4 in reverse noise

    By danran87,
    • 0 replies
    • 907 views

  18. 1985 K10 vent window weatherstripping.

    By vietnamvet,
    • 2 replies
    • 1.1k views

  19. 1987 gmc sierra s-15 clutch issue

    By lariosified,
    • 2 replies
    • 1.1k views

  20. 1987 GMC Sierra

    By Blake Stegenga,   
    • 1 reply
    • 2.1k views

  21. My 1st vehicle and 16 yrs later 1 2

    By redhot1.4,
    • 21 replies
    • 2.6k views

  22. Help!, 1987 chevy blazer power steering pump belt

    By Gm-wolf-351,
    • 4 replies
    • 2k views

  23. Parts for sale

    By redhot1.4,
    • 0 replies
    • 924 views

  24. 75 c/k ls swap help

    By Zonpakuto,
    • 3 replies
    • 976 views

  25. Cooling Idea Help

    By frodin1,
    • 0 replies
    • 1.4k views

  26. 1988 Silverado info

    By Roger_,
    • 1 reply
    • 969 views


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