1981 GMC K1500

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brakes (23)

• Bleeder Screw — Brake Caliper - Front7 lb-ft · 10 Nm
• Brake Line Banjo Bolt — Brake Caliper - Front18 lb-ft · 25 Nm
• Caliper Bracket Bolts — Brake Caliper - Front88 lb-ft · 120 Nm
• Bleeder Screw — Brake Caliper - Rear7 lb-ft · 10 Nm
• Brake Line Banjo Bolt — Brake Caliper - Rear18 lb-ft · 25 Nm
• Caliper Bracket Bolts — Brake Caliper - Rear74 lb-ft · 100 Nm
• Brake Line Fittings — Brake Master Cylinder11 lb-ft · 15 Nm
• Master Cylinder Nuts — Brake Master Cylinder18 lb-ft · 25 Nm
• Brake Line Fittings — Brake Master Cylinder Rebuild11 lb-ft · 15 Nm
• Master Cylinder Mounting Nuts — Brake Master Cylinder Rebuild18 lb-ft · 25 Nm

cooling (18)

• Block Drain Plug — Coolant Flush18 lb-ft · 25 Nm
• Drain Petcock — Coolant Flush4 lb-ft · 5 Nm
• Coolant Outlet/Housing Bolts — Coolant Outlet9 lb-ft · 12 Nm
• Coolant Temperature Sensor — Coolant Outlet15 lb-ft · 20 Nm
• Hose Clamps — Coolant Outlet2 lb-ft · 3 Nm
• Drain Petcock — Radiator4 lb-ft · 5 Nm
• Radiator Mount Bolts — Radiator9 lb-ft · 12 Nm
• Transmission Cooler Lines — Radiator18 lb-ft · 25 Nm
• Upper/Lower Hose Clamps — Radiator2 lb-ft · 3 Nm
• Drain Petcock — Radiator Removal and Service4 lb-ft · 5 Nm

drivetrain (17)

• Center Support Bearing Bracket Bolts — Driveshaft Center Support Bearing37 lb-ft · 50 Nm
• Driveshaft Flange Bolts — Driveshaft Center Support Bearing55 lb-ft · 75 Nm
• Center Support Bearing Bracket Bolts — Driveshaft - Front37 lb-ft · 50 Nm
• Driveshaft Flange Bolts (CV/U-Joint) — Driveshaft - Front55 lb-ft · 75 Nm
• Transfer Case Output Yoke Nut — Driveshaft - Front133 lb-ft · 180 Nm
• Differential Pinion Yoke Nut — Driveshaft - Rear184 lb-ft · 250 Nm
• Driveshaft Flange Bolts — Driveshaft - Rear55 lb-ft · 75 Nm
• U-Joint Strap Bolts — Driveshaft - Rear26 lb-ft · 35 Nm
• Transfer Case Drain Plug — Transfer Case Fluid Change18 lb-ft · 25 Nm
• Transfer Case Fill Plug — Transfer Case Fluid Change18 lb-ft · 25 Nm

electrical (12)

• Alternator Mounting Bolts — Alternator37 lb-ft · 50 Nm
• Alternator Pivot Bolt — Alternator18 lb-ft · 25 Nm
• Battery Terminal Bolts — Alternator6 lb-ft · 8 Nm
• Serpentine Belt Tensioner — Alternator41 lb-ft · 55 Nm
• Battery Hold-Down Bolt — Battery6 lb-ft · 8 Nm
• Battery Terminal Bolts — Battery4 lb-ft · 6 Nm
• Battery Tray Bolts — Battery9 lb-ft · 12 Nm
• Blower Motor Resistor Screws — Blower Motor1.5 lb-ft · 2 Nm
• Blower Motor Screws — Blower Motor3 lb-ft · 4 Nm
• Heat Shield Bolts — Starter7 lb-ft · 10 Nm

engine (46)

• Engine Mount-to-Block Bolts — Engine Mount - Front48 lb-ft · 65 Nm
• Engine Mount-to-Frame Bolts — Engine Mount - Front55 lb-ft · 75 Nm
• Through-Bolt — Engine Mount - Front63 lb-ft · 85 Nm
• Exhaust Manifold Nuts — Exhaust Manifold Gasket22 lb-ft · 30 Nm
• Exhaust Manifold Studs — Exhaust Manifold Gasket11 lb-ft · 15 Nm
• Heat Shield Bolts — Exhaust Manifold Gasket7 lb-ft · 10 Nm
• Idler Pulley Bolt — Fan Belt Replacement30 lb-ft · 40 Nm
• Tensioner Mounting Bolts — Fan Belt Replacement18 lb-ft · 25 Nm
• Tensioner Pulley Bolt — Fan Belt Replacement33 lb-ft · 45 Nm
• Flexplate Bolts — Flywheel63 lb-ft · 85 Nm

exhaust (2)

• Hanger Bracket Bolts — Muffler18 lb-ft · 25 Nm
• Muffler Clamps — Muffler41 lb-ft · 55 Nm

fuel (4)

• Fuel Filter Bracket Bolt — Fuel Filter7 lb-ft · 10 Nm
• Fuel Line Fittings — Fuel Filter18 lb-ft · 25 Nm
• Fuel Pump Module Lock Ring — Fuel Pump59 lb-ft · 80 Nm
• Tank Strap Bolts — Fuel Pump26 lb-ft · 35 Nm

hvac (5)

• AC Compressor Mounting Bolts — AC Compressor18 lb-ft · 25 Nm
• AC Line Fittings — AC Compressor15 lb-ft · 20 Nm
• Clutch Connector Bolt — AC Compressor6 lb-ft · 8 Nm
• AC Line Fittings — AC Condenser15 lb-ft · 20 Nm
• Condenser Mounting Bolts — AC Condenser9 lb-ft · 12 Nm

ignition (3)

• Ignition Coil Bolts — Spark Plugs6 lb-ft · 8 Nm
• Spark Plugs - Aluminum Head — Spark Plugs15 lb-ft · 20 Nm
• Spark Plugs - Cast Iron Head — Spark Plugs22 lb-ft · 30 Nm

steering (8)

• High Pressure Hose Fitting — Power Steering Pump18 lb-ft · 25 Nm
• Power Steering Pump Bolts — Power Steering Pump18 lb-ft · 25 Nm
• Pressure Line Fitting — Power Steering Pump22 lb-ft · 30 Nm
• Pulley Nut — Power Steering Pump52 lb-ft · 70 Nm
• Pump Mounting Bolts — Power Steering Pump18 lb-ft · 25 Nm
• Return Hose Clamp — Power Steering Pump2 lb-ft · 3 Nm
• Return Line Clamp — Power Steering Pump3 lb-ft · 4 Nm
• Serpentine Belt Tensioner — Power Steering Pump41 lb-ft · 55 Nm

suspension (11)

• Ball Joint Pinch Bolt — Front Suspension Rebuild37 lb-ft · 50 Nm
• Lower Control Arm Bolts — Front Suspension Rebuild81 lb-ft · 110 Nm
• Strut Top Mount Nuts — Front Suspension Rebuild18 lb-ft · 25 Nm
• Sway Bar End Link Nuts — Front Suspension Rebuild44 lb-ft · 60 Nm
• Upper Control Arm Bolts — Front Suspension Rebuild66 lb-ft · 90 Nm
• Lower Control Arm Bolts — Rear Suspension Service66 lb-ft · 90 Nm
• Shock Lower Bolt — Rear Suspension Service52 lb-ft · 70 Nm
• Sway Bar End Link Nuts — Rear Suspension Service37 lb-ft · 50 Nm
• Trailing Arm Bolts — Rear Suspension Service88 lb-ft · 120 Nm
• Lower Mount Bolt — Shock Absorber Replacement66 lb-ft · 90 Nm

transmission (3)

• Transmission Drain Plug — Transmission Fluid Change22 lb-ft · 30 Nm
• Transmission Filter Bolts — Transmission Fluid Change6 lb-ft · 8 Nm
• Transmission Pan Bolts — Transmission Fluid Change9 lb-ft · 12 Nm

maintenance (30)

• 100K Service

  maintenance
  3.5 hr
• 30K Service

  maintenance
  2.5 hr
• 60K Service

  maintenance
  3.5 hr
• 90K Service

  maintenance
  3.5 hr
• AC System Diagnosis

  maintenance
  1 hr
• Air Filter

  maintenance
  0.3 hr
• Battery Test

  maintenance
  0.4 hr
• Charging System Test

  maintenance
  0.5 hr
• Check Engine Light Diagnosis

  maintenance
  1.2 hr
• Compression Test

  maintenance
  0.6 hr

Wiper blades

1980-1986 GMT400 generation uses symmetrical 16-inch blades with standard hook attachment