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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.

382 topics in this forum

  1. Oshawa Truck Assembly Pics From the 70s

    By revrnd,
    • 2 replies
    • 1.6k views

  2. Paint codes for one-off factory job

    By Chambo,
    • 0 replies
    • 636 views

  3. Parts for sale

    By redhot1.4,
    • 0 replies
    • 1.1k views

  4. Photos Of My 76 Long Bed 454 Big Block

    By jseabolt,
    • 0 replies
    • 2.6k views

  5. Power loss to ignition no gauges radio nothing

    By Shofoo,
    • 1 reply
    • 2.5k views

  6. power problem to fuse block

    By sean jordan,   
    • 1 reply
    • 11.7k views

  7. Power to fuel pump

    By Casey 8520,
    • 1 reply
    • 1.4k views

  8. Power Window Regulator part (not from china!) 79 k10

    By 2018GMC,
    • 7 replies
    • 4.1k views

  9. Power window stuck

    By Steven Rodriguez,
    • 1 reply
    • 2.5k views

  10. Pump Accelerator Won't Start without priming with fuel

    By RDV,
    • 1 reply
    • 676 views

  11. Quadrajet help needed

    By jseabolt,
    • 7 replies
    • 4.2k views

  12. Question

    By Dano07,
    • 0 replies
    • 1.3k views

  13. question about radiatior support barcket. please help

    By dcole78,
    • 2 replies
    • 975 views

  14. question on 77-87 K2500

    By mark_k,
    • 12 replies
    • 5.7k views

  15. Radiator brackets/mounts help needed

    By crnext,   
    • 10 replies
    • 10k views

  16. Radiator for a 1982 K2500

    By Logan Lanfear,   
    • 0 replies
    • 1.8k views

  17. Rally wheels!

    By snapring6r,
    • 0 replies
    • 1.9k views

  18. Rear end

    By derrik.kasinger,
    • 2 replies
    • 3.7k views

  19. rear leaf spring hanger measurments

    By 2014AT,
    • 1 reply
    • 1k views

  20. Rebuild 700r4, anyone done it?

    By W8MCC,   
    • 4 replies
    • 2.8k views

  21. Rebuild sbc 400 in K10 or Crate motor? 1 2

    By 2018GMC,
    • 25 replies
    • 11.9k views

  22. Regular cab stained glass

    By mjoekingz28,   
    • 1 reply
    • 1.3k views

  23. Replaced Brake Booster Now Pedal Goes To The Floor

    By Totty101,
    • 8 replies
    • 6.5k views

  24. Replacement Q-Jet question

    By Shawn84,
    • 9 replies
    • 2.9k views

  25. Replacing a 1-ton rear end

    By Jhhl,
    • 0 replies
    • 1.7k views
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