Trimatic, TH180, 3L30

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.

Severe wear of the servo apply pin bore due to continuous pin oscillation can result in burned clutches, shift complaints and destroyed cases. The Sonnax servo pin bore sleeve kit 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 and alignment fixture. The alignment fixture 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

SONNAX Installation Instructions