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Automatic Transmission Extension Housing Seal for GMC K35/K3500 Pickup 1974 1973 1972 1971 1970 1969 1968 P-55403

Automatic Transmission Extension Housing Seal for GMC K35/K3500 Pickup 1974 1973 1972 1971 1970 1969 1968 P-55403

$15.87 - $15.87
$15.87
$15.87 - $15.87
$15.87
Availability:
5+ in stock, ready to be shipped

Condition: New

Delivery & Returns

Most orders ship out same business day if ordered before 1pm CST. Return within 30 days for a refund.

Automatic Transmission Extension Housing Seal

Vehicle Compatibility Chart

✅ Compatible with 66 vehicles
Year Make Model Liters Cylinders Notes
1974 GMC K35/K3500 Pickup 4.1L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1974 GMC K35/K3500 Pickup 4.1L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1974 GMC K35/K3500 Pickup 4.8L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1974 GMC K35/K3500 Pickup 4.8L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1974 GMC K35/K3500 Pickup 5.7L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1974 GMC K35/K3500 Pickup 5.7L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1974 GMC K35/K3500 Pickup 7.4L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1974 GMC K35/K3500 Pickup 7.4L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1973 GMC K35/K3500 Pickup 4.1L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1973 GMC K35/K3500 Pickup 4.1L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1973 GMC K35/K3500 Pickup 4.8L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1973 GMC K35/K3500 Pickup 4.8L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1973 GMC K35/K3500 Pickup 5.0L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1973 GMC K35/K3500 Pickup 5.0L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1973 GMC K35/K3500 Pickup 5.7L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1973 GMC K35/K3500 Pickup 5.7L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1973 GMC K35/K3500 Pickup 7.4L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1973 GMC K35/K3500 Pickup 7.4L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1972 GMC K35/K3500 Pickup 4.1L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1972 GMC K35/K3500 Pickup 4.1L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1972 GMC K35/K3500 Pickup 4.8L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1972 GMC K35/K3500 Pickup 4.8L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1972 GMC K35/K3500 Pickup 5.0L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1972 GMC K35/K3500 Pickup 5.0L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1972 GMC K35/K3500 Pickup 5.7L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1972 GMC K35/K3500 Pickup 5.7L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1972 GMC K35/K3500 Pickup 6.6L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1972 GMC K35/K3500 Pickup 6.6L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1971 GMC K35/K3500 Pickup 4.1L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1971 GMC K35/K3500 Pickup 4.1L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1971 GMC K35/K3500 Pickup 4.8L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1971 GMC K35/K3500 Pickup 4.8L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1971 GMC K35/K3500 Pickup 5.0L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1971 GMC K35/K3500 Pickup 5.0L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1971 GMC K35/K3500 Pickup 5.7L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1971 GMC K35/K3500 Pickup 5.7L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1971 GMC K35/K3500 Pickup 6.6L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1971 GMC K35/K3500 Pickup 6.6L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1970 GMC K35/K3500 Pickup 4.1L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1970 GMC K35/K3500 Pickup 4.1L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1970 GMC K35/K3500 Pickup 4.8L L6 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1970 GMC K35/K3500 Pickup 4.8L L6 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1970 GMC K35/K3500 Pickup 5.0L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1970 GMC K35/K3500 Pickup 5.0L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1970 GMC K35/K3500 Pickup 5.7L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1970 GMC K35/K3500 Pickup 5.7L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1970 GMC K35/K3500 Pickup 6.6L V8 Fits Automatic Transmission Extension Housing Seal without Boot, with dimensions: Width 0.5625", Outer Diameter 2.9375", Inner Diameter 2.0625", compatible with 3L80, THM425, THM475/M40.
1970 GMC K35/K3500 Pickup 6.6L V8 Fits vehicles without boot, with a width of 0.5625", outer diameter of 2.9375", inner diameter of 2.0625"; compatible with 3L80, THM425, and THM475/M40 transmissions.
1969 GMC K35/K3500 Pickup 4.1L L6 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 4.1L L6 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 4.8L L6 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 4.8L L6 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 5.0L V8 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 5.0L V8 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 6.5L V8 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1969 GMC K35/K3500 Pickup 6.5L V8 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 4.1L L6 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 4.1L L6 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 4.8L L6 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 4.8L L6 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 5.0L V8 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 5.0L V8 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 5.4L V8 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 5.4L V8 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 6.5L V8 Description: w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400
1968 GMC K35/K3500 Pickup 6.5L V8 w/o Boot; Width: 0.5625"; Outer Diameter: 2.9375"; Inner Diameter: 2.0625"; Only Fits THM400

Part Attributes

  • ATP

Part Interchanges

14118, 18992, 33006, 46433, 759023, 759149, 8625893, 8626009, 8655031, 9449, ML26, SL81