Sonnax bushing 77005T is a direct replacement for the GM 4L60, 4L60-E, 4L65-E, 4L70-E pump bushing and an upgrade for the 5L40-E, 5L50-E and 200-4R. This bushing also can be used as an upgrade in the Powerglide high clutch drum. The bushing is PTFE lined like the OE 4L60 series bushing for superior, long-term wear characteristics.