- Core: GM M5U, 4.3L & 5.3L
- Dampered: Yes
- Lockup: Multi-Plate
- Transmission Unit: 8L90
- Clutch Material: HTS
- Turbine Hub Input Spline Count: 36
- Core: GM M5U, 6.2L
- Dampered: Yes
- Lockup: Multi-Plate
- Transmission Unit: 8L90
- Clutch Material: HTS
- Turbine Hub Input Spline Count: 36
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