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GMC C3500HD Automatic Transmission Extension Housing Seal Replacement

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  1. ✓ In Stock 1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: SO-22

    Position: Housing To Case O-Ring, Square-Cut - Rear Bearing Retainer To Case O-Ring

    $8.86 View part →
  2. ✓ In Stock 1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 760009

    Position: Housing To Case O-Ring, Square-Cut - Rear Bearing Retainer To Case O-Ring

    $8.88 View part →
  3. ✓ In Stock 1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: JO-57

    w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"

    $10.47 View part →
  4. ✓ In Stock 1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759023

    w/o Boot Width: 0.5625" Outer Diameter: 2.9375" Inner Diameter: 2.0625"

    $10.69 View part →
  5. ✓ In Stock 1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 9449

    Under 15,000 (lb) Gross Vehicle Weight (GVW) without Boot

    $11.16 View part →
  6. ✓ In Stock 1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: HO-9

    W/O Boot; W/Flange; W/O Extension Width: 0.5" Outer Diameter: 2.6875" Inner Diameter: 1.75" Position: Output

    $11.72 View part →
  7. ✓ In Stock 1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1991-1992 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759016

    W/O Boot; W/Flange; W/O Extension Width: 0.5" Outer Diameter: 2.6875" Inner Diameter: 1.75" Position: Output

    $11.74 View part →
  8. ✓ In Stock 1991-2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    1991-2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4583

    with GMC 4L60-E Transmission without Boot

    $12.64 View part →
  9. ✓ In Stock 1991-2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    1991-2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4934

    Boot Type with GMC 4L60-E Transmission

    $20.00 View part →
  10. ✓ In Stock 2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2343999
    $21.09 View part →
  11. ✓ In Stock 1993-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    1993-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: CO-36

    w/ Boot

    $26.24 View part →
  12. ✓ In Stock 1993-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1993-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759115

    w/ Boot

    $26.26 View part →
  13. ✓ In Stock 1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (Pioneer Cable)

    Partslink #: 759099

    w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"

    $28.29 View part →
  14. ✓ In Stock 1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    1991-1994 GMC C3500HD Automatic Transmission Extension Housing Seal (ATP)

    Partslink #: JO-124

    w/ Boot Width: 1.625" Outer Diameter: 3.125" Inner Diameter: 2.0625"

    $28.31 View part →
  15. ✓ In Stock 1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 4333N

    Boot Type 1.500 (in) Width with GMC 4L80-E Transmission

    $32.72 View part →
  16. ✓ In Stock 1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal - Rear (ACDelco)

    1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal - Rear (ACDelco)

    Partslink #: 24235725

    Automatic Transmission Extension Housing Seal; 15,000 LBS GVWR (C5B)

    $37.00 View part →
  17. ✓ In Stock 2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-2312082
    $42.96 View part →
  18. ✓ In Stock 1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    1991-2002 GMC C3500HD Automatic Transmission Extension Housing Seal (National Bearing)

    Partslink #: 2457

    Over 15,000 (lb) Gross Vehicle Weight (GVW) without Boot

    $54.78 View part →
  19. ✓ In Stock 2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    2000 GMC C3500HD Automatic Transmission Extension Housing Seal (National)

    Partslink #: W0133-1727208
    $58.81 View part →

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Automatic Transmission Extension Housing Seal Compatibility for GMC C3500HD

Browse our selection of quality automatic transmission extension housing seal parts designed specifically for your GMC C3500HD. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

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