Power by the Hour 6R80 Modified Center Support (PBH-648)
The factory 6R80 center support is an all-aluminum drum that houses the intermediate clutch pack and lower reverse piston, with the direct drum shaft passing through its center. Over time, the aluminum design proves to be a weak point, leading to galling and damage in high-stress applications.
PBH resolves this issue by machining back the OEM aluminum and pressing in a durable bronze bushing. This upgrade eliminates galling and wear, ensuring long-term reliability under increased power levels. The PBH-648 modified center support is a direct replacement designed for performance builds where durability is critical.
- Direct replacement for the 6R80 factory center support
- Upgraded with a precision-fit bronze bushing
- Prevents galling and wear common in factory aluminum units
- Improves reliability under high-power conditions
- Designed for long-term durability in performance transmissions
Tech Notes
- Factory aluminum supports are prone to damage and wear
- PBH machining process removes weak material and installs a bronze bushing
- Recommended for high-power builds needing maximum reliability
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

