6L80E [06-UP] Automatic Transmission Steel Clutch Pack Hi-performance

When a 6L80E or 6L90E automatic transmission comes apart showing glazed or heat-damaged steels, replacing them with a kolene-treated hi-performance module is one of the more direct ways to address the root cause rather than just the symptom. What sets this particular steel apart from standard replacement steels is the kolene surface service, a case-hardening process that leaves the contact face significantly more resistant to the heat cycles and torque loading these six-speed units see in daily use. Standard steels can glaze or micro-weld to friction material under sustained stress; a kolene-treated surface resists that progression and gives the rebuilt clutch pack a more consistent bite across its service life.

This is a single steel module, not a kit. It does not include friction discs, Automatic Transmission Filter, gaskets, seals, or any other rebuild components. If you are pricing out a full overhaul, treat this as one line item and source the remaining parts separately. The part weighs 5 lb and is built to the dimensional spec of the 6L80E and 6L90E platform, covering units produced from 2006 forward.

Before placing the order, pull the transmission code directly off the unit, not from the vehicle trim level or the stock work order. Both the 6L80E and 6L90E are covered here, but confirming the exact code and the model year avoids a return and keeps the job on schedule. If there is any doubt about which unit is on the bench, the identification step is worth the extra few minutes.

• This kolene-treated hi-performance steel module addresses friction and heat buildup in 6L80E and 6L90E units, giving the clutch pack a harder, more durable surface to work against during rebuild.
• This listing is for a single steel module only. It does not include friction discs, seals, gaskets, bands, Automatic Transmission Filters, or any other components. Verify what else your rebuild requires before ordering.
• Kolene processing gives this steel a case-hardened surface that resists glazing and micro-welding under high-torque cycling, a condition plain steels are more prone to in these units.
• One (1) hi-performance kolene steel module, approximately 5 lb. Designed to specification for the 6L80E and 6L90E automatic transmission platform.
• Before ordering, confirm the exact transmission code stamped on your unit and the model year. Both 6L80E and 6L90E share this part, but verify your application matches [06-UP] production.

What's in the box

• 1 x Steel Clutch Pack, 6L80E High Performance Module Kolene

Compatible vehicles

• Fits CTS-V [06-15], Escalade/ESV/EXT [07-15], SRX [06-09], STS [06-11], XLR [06-11], Camaro [10-13], Corvette [06-11], SS [14-17], Avalanche [08-13], Express 2500 [10-11], Express 3500 [10-11], Silverado 1500 1/2 Ton [07-09].