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GM TH425 Transaxle Stock Capacity
    GM TH425 Transaxle Stock Capacity
    Purchase GM TH425 Transaxle Stock Capacity

    • GM TH425 Transaxle Stock Capacity
       Part Number 7873

    • For 1960s and 1970s Eldorado, Toronado, some GM Motorhomes and similar. Front wheel drive vehicles.

      Pan includes magnetic drain plug and mounting hardware.
      Price varies with finish. SEE PRODUCT INFO.

      $0.00

    • OPTIONAL - add machining of a 1/8 NPT hole for an aftermarket temperature sending unit:

    •  

    Volume: stock to a little over stock capacity

    Dimensions: Click here for dimensions.

    Number of Bolts: 13

    Benefits:

    • Drain hole and magnetic drain plug for easier fluid changes
    • Raised fins to help with cooling
    • Heavy duty construction for strength
    • Thick flange for an excellent seal to the transmission housing

    This pan is stock capacity but it is still larger than stock due to the thick wall construction and fins. Always check your vehicle for clearance before ordering.

    This PML pan fits many front wheel drive GM cars and chassis with the TH425 transaxle transmission. This includes:

    • 1966-78 Oldsmobile Toronado
    • 1967-78 Cadillac Eldorado
    • GMC Motorhomes

    Always check your vehicle for clearance and fitment. Configurations vary.

    1971 Eldorado

    Wayne installed this PML GM 425 transmission pan on his 1971 Eldorado with 47,000 miles.

    1971 Cadillac Eldorado GM 425 transmission 1971 Cadillac Eldorado   PML transmission pan on 1971 Eldorado view from the back of PML transmission pan installed   PML GM425 transmission pan on 1971 Eldorado, drain plug shown view from front of PML transmission pan installed, drain plug on the front
    Click on image to view larger.

    Drain and Bolts Included with Transmission Pan

    PML GM 425 transmission pan includes new bolts and a magnetic drain plug     Black powder coated gm425 transmission pan hardware package
    Click on image to view larger in a new tab or window.

    This PML pan includes a magnetic drain plug, copper sealing washer and new mounting hardware.

    The drain hole is located on the front of the pan.

    Optional Temperature Sensor Machining

    drain on PML GM 425 transmission pan     location for NPT for temp sending unit
    Click on image to view larger in a new tab or window.

    The pan has a half circle boss (thick area) on the front of the pan near the drain plug that optionally can be drilled and tapped for a temperature sending unit for an aftermarket temperature gage. There is a custom machining charge if PML drills and taps the hole. Select the option before clicking ADD TO CART button. The standard size is 1/8 NPT. Call or email if a different size is needed.

    Inside of Pan

    inside of PML GM 425 transmission pan    Click on image to view larger in a new tab or window.

    PML Transmission Pan Compared to Stock

    PML Transmission Pan Part Number 7873 compared to stock   PML Transmission Pan Part Number 7873, compared to stock, top view
    Click on image to view larger in a new tab or window.