#19B / #77010-01 . 700R4 / 4L60E / 4L65E double wide sun gear bushing. This bushing is approximately twice the width of the OEM version and fills the entire sun gear bushing groove. This wider bushing maximizes bushing support. The bushing is a steel-backed bronze bushing that is precision machined to provide minimal clearance with the mating shaft. Reduces reaction carrier shaft damage.