Symptoms:

  • 2nd Clutch burned (GM)
  • Burnt band (GM)
  • 3rd Clutch burned
  • 2-3 Flare

Cause:

Severe wear of the case at the servo apply pin bore due to continuous pin oscillation can result in burned clutches, shift complaints, and destroyed cases.

Correction:

The Sonnax servo pin bore sleeve is made from highly wear-resistant aluminum and allows the case to be refurbished to provide proper clearance with the servo apply pins.

180, 180C (3L30), 4L30-E, 4R70E, 4R70W, 4R75E, 4R75W, AOD, AODE

Servo Pin Bore Sleeve
Part No. 76890-24K


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Severe wear of the servo apply pin bore due to continuous pin oscillation can result in burned clutches, shift complaints and destroyed cases. Sonnax servo pin bore sleeve kit 76890-24K is made from highly wear-resistant aluminum, and allows the case to be refurbished to provide proper clearance with the servo apply pins. Installation of the sleeve kit requires reamer tool S-76890-TL24 and alignment fixture SERVO-FIX. The SERVO-FIX is also used with AXOD/E, AX4N/S and 5R55N/S/W applications.

  • Tool kit pilot and reamer align from both pin bore center line, and servo piston bore
  • Highly wear-resistant aluminum sleeve refurbishes case bores
  • Kit allows expensive case salvage
  • 180, 180C (3L30), 4L30-E, 4R70E, 4R70W, 4R75E, 4R75W, AOD, AODE Servo Pin Bore Sleeve 76890-24K