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Automatic Transmission Extension Housing Seal Kit Transmission Gaskets & Seals

Regular maintenance of your gearbox's Gaskets & Seals is key to preventing leaks and ensuring optimal performance. Similarly, maintaining your Differential Seals is vital in protecting your differentials internal components from contaminants and preventing fluid leaks. Hearing vibrations? Make sure to inspect the condition of the CV Shaft Boots, essential to safeguarding the CV joints against dirt and moisture as well as the Wheel Hub Bearings.

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  1. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1979-1990 GMC K2500
    $11.67
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  2. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1991-1992 Buick Commercial Chassis
    $11.67
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  3. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1955-1960 GMC Truck
    $11.67
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  4. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1976-1987 Chevrolet Chevette
    $11.67
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  5. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1987 Oldsmobile Cutlass Salon
    $11.67
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  6. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1981-1987 Pontiac T1000
    $11.67
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  7. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1958 Chevrolet Yeoman
    $11.67
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  8. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1966 GMC 1000
    $11.67
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  9. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1970-1974 GMC G35 G3500 Van
    $11.67
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  10. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1955-1959 GMC PM250
    $11.67
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  11. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1960-1965 GMC 1500 Series
    $11.67
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  12. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1955-1958 GMC PM253
    $11.67
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  13. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1970-1974 Chevrolet G30 Van
    $11.67
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  14. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1986 Chevrolet K5 Blazer
    $11.67
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  15. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1959-1972 Chevrolet Kingswood
    $11.67
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  16. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1965-1985 Oldsmobile Delta 88
    $11.67
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  17. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1978 GMC K25
    $11.67
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  18. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1977-1992 Oldsmobile Custom Cruiser
    $11.67
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  19. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1980-1983 Oldsmobile Cutlass Cruiser
    $11.67
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  20. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1988-1990 Chevrolet C3500
    $11.67
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  21. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1960-1974 Chevrolet K10 Pickup
    $11.67
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  22. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1978-1979 Cadillac Seville
    $11.67
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  23. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1957-1959 GMC 300
    $11.67
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  24. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1989-1990 Geo Tracker
    $11.67
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  25. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1987-1988 Chevrolet V10 Suburban
    $11.67
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  26. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1960-1974 Chevrolet C10 Pickup
    $11.67
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  27. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1964-1983 Chevrolet Malibu
    $11.67
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  28. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1972-1984 Oldsmobile 98
    $11.67
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  29. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1979-1986 GMC K2500 Suburban
    $11.67
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  30. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1978 GMC G25
    $11.67
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  31. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1980 Buick Skyhawk
    $11.67
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  32. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1961-1963 Buick Invicta
    $11.67
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  33. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1967-1974 GMC P35 P3500 Van
    $11.67
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  34. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1958-1972 Chevrolet Biscayne
    $11.67
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  35. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1968-1970 Opel Rallye
    $11.67
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  36. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1966 GMC K1000 Pickup
    $11.67
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  37. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1977 Pontiac Astre
    $11.67
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  38. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1970-1988 Chevrolet Monte Carlo
    $11.67
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  39. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1968-1974 GMC K35 K3500 Pickup
    $11.67
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  40. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1967-1988 Oldsmobile Cutlass Supreme
    $11.67
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  41. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1967 Chevrolet K20 Panel
    $11.67
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  42. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1980 Chevrolet Monza
    $11.67
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  43. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1987-1988 Chevrolet R20 Suburban
    $11.67
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  44. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1986 Chevrolet C20
    $11.67
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  45. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1979-1986 GMC P3500
    Special Price $12.21 Regular Price $16.99
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  46. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1957-1959 GMC FM350
    Special Price $12.21 Regular Price $16.99
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  47. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1967 Oldsmobile Delmont 88
    Special Price $12.21 Regular Price $16.99
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  48. National Automatic Transmission Extension Housing Seal Kit
    National Extension Housing Seal Kit for 1975-1983 Pontiac Grand LeMans
    Special Price $12.21 Regular Price $16.99
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