New 4L80E Speed Sensor Ring (reluctor ring). # RR1 2WD Only
# RR1. New 4L80E speed sensor ring (reluctor ring). The output speed sensor rings on the 4L80-E transmissions are often damaged while rebuilding. The OEM material is very brittle and can easily break. These rings are not serviced separately by the OEM and can only be purchased with the complete carrier assembly. The limited supply of good used rings is making them very difficult to find.
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