Toggle menu
(844) 298-6404

Shop by Category

  • Allison Transmission Parts
  • Dodge | Chrylser | Jeep Transmission Parts
  • Ford | Lincoln | Mercury Transmission Parts
  • Foreign Model Automatic Transmission Parts
  • GM Transmission Parts
  • High Performance Solutions
  • Manual Transmission Parts
  • Marine Transmission Parts
  • Transfer Case Parts & Kits
  • Transmission Rebuild Tools
  • Transmission Supplies

    • Shop by Brand

  • Precision International
  • Aftermarket
  • OEM
  • Raybestos Powertrain
  • Sonnax
  • Alto Products Corp
  • Steel Plates
  • TransGo
  • Superior Transmission Parts
  • Motorcraft
  • View all Brands
  • 4R70 4R75 Overdrive Servo Regulator Kit by Sonnax
  • 4R70 4R75 Overdrive Servo Regulator Kit by Sonnax
    • 4R70 4R75 Overdrive Servo Regulator Kit by Sonnax 4R70 4R75 Overdrive Servo Regulator Kit by Sonnax

    4R70 4R75 Overdrive Servo Regulator Kit by Sonnax

    $42.95
    (No reviews yet) Write a Review
    SKU:
    76948-29K
    Condition:
    New
    Availability:
    Multiple Locations
    Adding to cart… category.add_cart_announcement

    Product Description

    4R70E, 4R70W, 4R75E, 4R75W

    Overdrive Servo Regulator Kit
    Part No. 76948-29K

    Fits '01-later units only.

    Common problems in listed Ford units include are a burned overdrive band, loss of 4th Gear, and/or a 4-3-Neutral shift pattern. These problems can be caused by wear at the inside diameter of the overdrive servo regulator boost valve sleeve, due to constant oscillation. Excessive wear allows valuable overdrive oil to leak, preventing the proper regulation of the overdrive servo. Sonnax overdrive servo regulator kit 76948-29K maintains critical tolerances that re-establish the hydraulic integrity of the circuit.

    • Hardcoat anodized valve and high-grade aluminum sleeve resist wear.
    • Closely toleranced sleeve improves sealing.
    • Valve
    • Sleeve

    Symptoms:

    • 4-3 Neutral
    • No 4th
    • Burnt OD band

    Cause:

    Wear at the inside diameter of the overdrive servo regulator boost valve sleeve due to constant oscillation allows valuable overdrive oil to leak.

    Correction:

    Install Sonnax replacement assembly to provide better sealing at all temperature ranges.

    Product Videos

    Custom Field

    Product Reviews

    Write a Review

    Recommended