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  • 77998-03K
  • 77998-03K

    700R4 700 4L60 4L65 E Sonnax Pinless 1-2 2-3 Accumulator 77998-03K New

    Sonnax Industries

    MSRP:
    Now: $25.00
    (You save )
    (No reviews yet) Write a Review
    SKU:
    77998-03K
    Condition:
    New
    Weight:
    0.30 LBS
    Width:
    6.00 (in)
    Height:
    3.00 (in)
    Depth:
    9.00 (in)
    Shipping:
    Calculated at Checkout

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    Product Description

    700 700R4 4L60 4L60E 4L65E 4L70E Sonnax 77998-03K New Pinless Accumulator Piston Kit "Fits All Years"

     

     

    Sonnax Updated Pinless Accumulator Piston Kit.

     

    This Piston Will Fit These Automatic Transmissions;

     

    GMC    CHEVY    BUICK    CADILLAC    PONTIAC    OLDSMOBILE

        700R4
        4L60
        4L60E
        4L65E
        4L70E

     

    This Is A Listing For One Piston Kit!!!!!!!

    One Transmission Will Take Two Of These Kits For Every Year!!!!

     

     

    Sonnax 1-2 And 2-3 Updated Pinless Accumulators:

    Pinless Accumulator Pistons Part summary;

    In 4L60 & 4L60-E units it is common to have poor shift quality, burned bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. Sonnax now offers three versions of a dual-seal, pinless accumulator piston kit.

    4L60E / 4L65E Pinless accumulator piston. In 4L60-E units it is common for the plastic forward accumulator piston to wear or crack. This causes a fluid loss resulting is delayed engagement, slips, burned clutches and/or band. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear. Fluid loss through the piston pin bore or cracks causes forward clutch to slip. The stock accumulator piston can develop a large pressure leak at the pin area over a period of 50 to 100 thousand miles

     

    THIS IS HOW THE PINLESS ACCUMULATORS WORK.

    COMPLAINT;

    Burned clutches and band.  Poor shift quality.

    CAUSE:

    Wear at the piston pin bore due to repeated reciprocation.

    CORRECTION:

    The Sonnax patented pinless design with dual seals stabilizes the piston in the bore and provides improved sealing characterics. Use of this part eliminates the need for the pins.

     

    THIS UPDATE PACKAGE CAN BE INSTALLED WITH THE TRANSMISSION IN OR OUT OF THE VEHICLE.

    PLEASE MAKE SURE OF YOUR YEAR BEFORE ORDERING, ANY QUESTIONS PLEASE CALL 1-888-8CT-POWR

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    77998-03K
    Sonnax Industries
    700R4 700 4L60 4L65 E Sonnax Pinless 1-2 2-3 Accumulator 77998-03K New

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