- Transmission & Drivetrain
- Automatic Transmission Components
- Sonnax GM 6L80 & 6L90 Output Planetary Lube Dam
Replacement Planetary Lube Dam
The Sonnax Output Planetary Lube Dam (cover) for GM 6L80/6L90 transmissions will direct lube oil flow to the planetary lube feed passages, preventing lube failures and comebacks associated with output-planetary system buildup.