Three – Sonnax TH400, 4L80E No “Walk Out” Case Bushings 34006-SP


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SKU (TPD Part#): K34006-SP-3 Categories: ,

Three – Sonnax TH400, 4L80E No “Walk Out” Case Bushings 34006-SP
3 Sonnax bushings for only $33.00

The OE case bushing in vehicles with a GM THM-400, 4L80-E and 4L85-E transmissions tends to walk out of the housing bore. This leaves the output shaft unsupported, ruins the governor gear and can cause case damage. The no-walk flange feature of the Sonnax case bushing 34006-SP is specially designed to keep the bushing in the case bore.

    High-quality bronzeFlange on the transmission case side prevents bushing from walking completely through the boreFlange accurately locates and helps retain the selective washerMachined oil grooves allow for a supply of lubricating oil to enter the extension housing as well as the transmission case.


The housing bore should measure between 2.1285″/2.1295″ in diameter for an ideal fit. When damage to the case is so severe that bore diameter is larger than 2.129″, use Sonnax oversized case bushing 34006-OS.  See instructions for details.


    Material: BronzeBushing Style: PrecisionWidth: 0.690″Shaft Dia.: 2.006″Housing Bore: 2.129″





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