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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.

Followers 12

346 topics in this forum

  1. 75 C30 Rear Drum Brake Locked Up

    By David Nicholas,
    • 0 replies
    • 56 views

  3. 1976 GMC Eleganza Stalling Issue

    By Janet Rocco,
    • 0 replies
    • 60 views

  4. 83 1500 8ft bed cab and bed swap onto a 2013 1500 4wd 8foot bed chassis

    By Robnj51,
    • 0 replies
    • 58 views

  5. 1985 Short bed step side 4wd production numbers

    By Red 85 GMC stepside,
    • 0 replies
    • 86 views

  6. Loud Engine Knock While Accelerating

    By ArcticCatIV,   
    • 0 replies
    • 128 views

  7. 79 short box stepside project

    By ottoman,
    • 0 replies
    • 130 views

  8. 1973 power window switches

    By Dawson Garland,
    • 1 reply
    • 163 views

  9. 87 chevy tbi 350 no fuel

    By Markus Escamilla,
    • 0 replies
    • 237 views

  10. New here, but not a square body owner yet

    By blazblu82,
    • 0 replies
    • 140 views

  11. Help Identifying wheels.

    By ToddSw,
    • 7 replies
    • 476 views

  12. Troubleshooting

    By Cladiesel,
    • 0 replies
    • 486 views

  13. 1986 chevy c10

    By Seth Putnam,
    • 2 replies
    • 475 views

  14. 85 C10 throttle cable bracket

    By breadstick,
    • 0 replies
    • 645 views

  15. Bring My Old Drag Truck Back To Life 1 2 3

    By Pacfanweb,
    • 33 replies
    • 10.6k views

  16. Brass radiator tank replacement

    By d9gdon,
    • 0 replies
    • 947 views

  17. Wheel cylinders 77 C10

    By Benjamin Peter Trout,
    • 1 reply
    • 542 views

  18. 1987 R30 Engine and Induction Swap

    By wazzadakka94,
    • 0 replies
    • 879 views

  19. 1988 Chev G20 van problems

    By James O'Byrne,
    • 1 reply
    • 1k views

  20. 1986 emission removal

    By kentrx1,
    • 2 replies
    • 731 views

  21. LED front and rear light bulbs

    By Dan Brown,
    • 0 replies
    • 816 views

  22. 5 speed trans

    By apes,
    • 0 replies
    • 519 views

  23. 1987 Chevy R10 1/2 ton lower control arms

    By Plumbermik,   
    • 1 reply
    • 1.1k views

  24. 1990 Suburban 3rd row seating

    By 426ted,
    • 1 reply
    • 2.6k views

  25. Concerns on my new project.

    By Tony B.,   
    • 2 replies
    • 1k views

  26. 1986 GMC K3500 4X4 454 GAS stalls and won't start for 30 mins

    By ngodline12,
    • 7 replies
    • 1k views


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