GM Square Body - 1973 - 1987 GM Truck Forum

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  What have you done to your square lately??

  • Latest: JamesSam
  • 30 minutes ago

  Garage
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  Mechanical fuel pump return line

  • Latest: Logbed
  • 33 minutes ago

  Engine & Performance
• 

  1987 454 TBI stalls at idle after a short time

  • Latest: Rusty Nail
  • Today at 1:02 PM

  Tech Discussion
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  87 or 89 Unleaded?

  • Latest: Ricko1966
  • Today at 12:58 PM

  Engine & Performance
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  Heavy vibration at highway speed under load

  • Latest: MTBR12
  • Today at 12:14 PM

  Differential & Driveline

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