This is a performance OEM GM 700R4 & 4L60E 4L65E 5-pinion rear planet assembly that has been torn down, cleaned and inspected to ensure it is 100% ready to use in your rebuild.
The 5-pinion OEM front planet is a heavier construction then the AC Delco aftermarket 5-pinion rear planet, which makes this the choice part for high performance applications.
