Tech Resources Transmission Valve Body Layouts GM Valve Body Layout
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April 08, 2026
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GM 10L60/80/90 (Gen. 2) Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. Each layout:

With more than 60 layouts to choose from, these convenient, go-to reference guides are valuable resources for any shop.

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Related Units

10L80 (Gen. 2) Transmission 10L60 (Gen. 2) Transmission 10L90 (Gen. 2) Transmission


Related Parts

Required

Recommended

10L1000, 10L60 (Gen. 1), 10L60 (Gen. 2), 10L80 (Gen. 1), 10L80 (Gen. 2), 10L90 (Gen. 1), 10L90 (Gen. 2), 10R140, 10R60, 10R80 Solenoid Stabilization Clip Insert 105740-01K

10L1000 • 10L60 (Gen. 1) • 10L60 (Gen. 2) • 10L80 (Gen. 1) • 10L80 (Gen. 2) • 10L90 (Gen. 1) • 10L90 (Gen. 2) • 10R140 • 10R60 • 10R80

Solenoid Stabilization Clip Insert 105740-01K

    Helps cure:
  • Loss of shift solenoid control pressure
  • Poor shift quality
  • Various shift concerns
  • Burnt clutches
  • TCC apply & release concerns
  • Damaged valve body casting

Required

Recommended

10L1000, 10L60 (Gen. 1), 10L60 (Gen. 2), 10L80 (Gen. 1), 10L80 (Gen. 2), 10L90 (Gen. 1), 10L90 (Gen. 2), 10R140, 10R60, 10R80 Solenoid Stabilization Retainer 105740-19K

10L1000 • 10L60 (Gen. 1) • 10L60 (Gen. 2) • 10L80 (Gen. 1) • 10L80 (Gen. 2) • 10L90 (Gen. 1) • 10L90 (Gen. 2) • 10R140 • 10R60 • 10R80

Solenoid Stabilization Retainer 105740-19K

    Helps cure:
  • Loss of shift solenoid control pressure
  • Poor shift quality
  • Various shift concerns
  • Burnt clutches
  • TCC apply & release concerns
  • Damaged valve body casting

Required

Recommended

10L1000, 10L60 (Gen. 1), 10L60 (Gen. 2), 10L80 (Gen. 1), 10L80 (Gen. 2), 10L90 (Gen. 1), 10L90 (Gen. 2), 10R140, 10R60, 10R80 Clutch Control Valve Bore Sizing Tool 105740-BST

10L1000 • 10L60 (Gen. 1) • 10L60 (Gen. 2) • 10L80 (Gen. 1) • 10L80 (Gen. 2) • 10L90 (Gen. 1) • 10L90 (Gen. 2) • 10R140 • 10R60 • 10R80

Clutch Control Valve Bore Sizing Tool 105740-BST

Recommended

Required

Recommended

10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Oversized Main Pressure Regulator Valve Kit 105740-21K

10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Oversized Main Pressure Regulator Valve Kit 105740-21K

    Helps cure:
  • Low line pressure
  • Various shift concerns
  • Delayed engagement
  • Poor shift quality
  • Burnt clutches

Required

Recommended

10L60 (Gen. 1), 10L60 (Gen. 2), 10L80 (Gen. 1), 10L80 (Gen. 2), 10L90 (Gen. 1), 10L90 (Gen. 2), 10R60, 10R80 TCC Priority Valve Kit 105740-03K

10L60 (Gen. 1) • 10L60 (Gen. 2) • 10L80 (Gen. 1) • 10L80 (Gen. 2) • 10L90 (Gen. 1) • 10L90 (Gen. 2) • 10R60 • 10R80

TCC Priority Valve Kit 105740-03K

    Helps cure:
  • TCC apply & release concerns
  • Overheated fluid
  • TCC slip codes
  • Low line pressure & TCC concerns

Required

Recommended

10L80 (Gen. 2), 10L90 (Gen. 2) LPC Signal Damper Piston Kit 105740-05K

10L80 (Gen. 2) • 10L90 (Gen. 2)

LPC Signal Damper Piston Kit 105740-05K

    Helps cure:
  • Harsh shifts
  • High line pressure

Required

Recommended

10L60 (Gen. 1), 10L60 (Gen. 2), 10L80 (Gen. 1), 10L80 (Gen. 2), 10L90 (Gen. 1), 10L90 (Gen. 2), 10R60, 10R80 Oversized TCC Priority Valve Kit 105740-22K

10L60 (Gen. 1) • 10L60 (Gen. 2) • 10L80 (Gen. 1) • 10L80 (Gen. 2) • 10L90 (Gen. 1) • 10L90 (Gen. 2) • 10R60 • 10R80

Oversized TCC Priority Valve Kit 105740-22K

    Helps cure:
  • TCC apply & release concerns
  • Overheated fluid
  • TCC slip codes
  • Low line pressure & TCC concerns

Required

Recommended

10L1000, 10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Oversized TCC Regulator & Boost Valve Kit 105740-17K

10L1000 • 10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Oversized TCC Regulator & Boost Valve Kit 105740-17K

    Helps cure:
  • TCC apply & release concerns
  • Low TCC apply pressure in full lockup
  • Converter shudder & TCC slip

Required

Recommended

10L1000, 10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Feed Limit Low Valve Kit 105740-54K

10L1000 • 10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Feed Limit Low Valve Kit 105740-54K

    Helps cure:
  • Momentary wheel lockup
  • Code P0747
  • Downshift to 2nd from high gear
  • Harsh shifts
  • 5th Gear only
  • Reduced propulsion message
  • Burnt clutches
  • Clutch failure
  • Safety Recall N242480630 Momentary Wheel Lock-Up
  • Safety Recall N242454440 Momentary Rear Wheel Lock-Up

Required

Recommended

10L1000, 10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Feed Limit High Valve Kit 105740-58K

10L1000 • 10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Feed Limit High Valve Kit 105740-58K

    Helps cure:
  • No shift
  • Burnt clutches
  • Clutch failure

Required

Recommended

10L1000, 10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Oversized Feed Limit Low Valve Kit 105740-59K

10L1000 • 10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Oversized Feed Limit Low Valve Kit 105740-59K

    Helps cure:
  • Momentary wheel lockup
  • Code P0747
  • Downshift to 2nd from high gear
  • Harsh shifts
  • 5th Gear only
  • Reduced propulsion message
  • Burnt clutches
  • Clutch failure
  • Safety Recall N242480630 Momentary Wheel Lock-Up
  • Safety Recall N242454440 Momentary Rear Wheel Lock-Up

Required

Recommended

10L1000, 10L60 (Gen. 2), 10L80 (Gen. 2), 10L90 (Gen. 2) Oversized Feed Limit High Valve Kit 105740-60K

10L1000 • 10L60 (Gen. 2) • 10L80 (Gen. 2) • 10L90 (Gen. 2)

Oversized Feed Limit High Valve Kit 105740-60K

    Helps cure:
  • No shift
  • Burnt clutches
  • Clutch failure

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.

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