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  • Sonnax 3-4 accumulator sleeve kit comes with an aluminum sleeve, a replacement piston with an O-ring, and a new accumulator pin. It is compatible with all OE accumulator springs.
    • Sonnax 3-4 accumulator sleeve kit comes with an aluminum sleeve, a replacement piston with an O-ring, and a new accumulator pin. It is compatible with all OE accumulator springs.

    700R4 4L60E 4L65E 3-4 Accumulator Sleeve Kit

    $49.95
    (No reviews yet) Write a Review
    SKU:
    77998-01K
    Condition:
    New
    Availability:
    Multiple Locations
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    Product Description

    4L60, 4L60-E, 4L65-E, 4L70-E

    3-4 Accumulator Sleeve Kit
    Part No. 77998-01K

    The 3-4 accumulator bore on GM 4L60 and 4L60-E series cases can become scored, resulting in the loss of 4th servo feed and 4th accumulator pressure. Scoring is caused by repeated oscillation of the accumulator piston within the bore during normal operation. Once this bore is damaged, the case must be scrapped. Sonnax 3-4 accumulator sleeve kit 77998-01K counteracts bore wear and features upgraded materials for greater durability. The kit's piston is compatible with all OE accumulator springs.

    • Sleeve is manufactured from wear-resistant aluminum
    • Requires no machining of the transmission case

    • Sleeve
    • Piston
    • O-Ring Fluorocarbon
    • Accumulator Pin

    Symptoms:

    • Case damage
    • Scored accumulator bores
    • Worn accumulator bores

    Cause:

    Repeated oscillation of the accumulator piston scores the 3-4 accumulator bore during normal operation.

    Correction:

    Sonnax 3-4 accumulator sleeve kit comes with an aluminum sleeve, a replacement piston with an O-ring, and a new accumulator pin. It is compatible with all OE accumulator springs.

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