6L90 Banner Rebuild Kit 2006-17, new and ready to install. Fits the 6L90. Ships fast from the USA.
If your Silverado or Sierra 2500HD/3500HD, Express or Savana van, or a supercharged Camaro ZL1 or Corvette has a 6L90 that now slips on the highway, flares between gears or smells burnt at the dipstick, the clutch packs have usually given up before the hard parts. This banner kit covers the full 2006-2017 production span of the 6L90, so it is the kit to reach for when you are rebuilding a unit from any of those years and want new frictions and seals without paying for a full master set.
The 6L90 is GM's heavy-duty version of the 6L80. Transmission Digest notes that roughly a quarter of its internal parts were upgraded to handle more torque, and the clutch packs carry most of that load. Six forward speeds come from applying two of five clutches at a time, so a single glazed pack or a leaking piston seal shows up as a slip in every gear that uses it. A banner kit replaces those wear items in one box. The listing photo shows a large set of frictions in two lining types, the molded piston seals, the sealing rings and the valve body separator plate gasket. Steels are not called out, so treat them as a measure-and-decide item.
Burnt clutches are often the result of another problem, so find the cause before you buy parts. Check line pressure with a gauge and look for a cooler restriction: GM bulletin 22-NA-182 traces harsh shifts, flares and overheating on low-mileage 6L90 trucks to a twisted cooler line. A worn pressure regulator valve or a valve body checkball can also starve a pack and burn it. Our 6L90 common problems guide covers these causes, and the 6L90 rebuild wear points guide lists what to inspect once the case is apart.
This kit is listed for the GM 6L90 (RPO MYD) built from 2006 through 2017. It is not interchangeable with a 6L80 kit; ATSG documents fifteen parts that differ between the two, including a larger 3-5-R clutch hub on the 6L90. Because GM made running changes during an eleven-year span, lay a new friction next to an old one from each pack and compare the diameter, tooth count and thickness before assembly. If you are unsure, send us your year and VIN and we will check it before it ships. Every other kit and hard part for this unit is on the 6L90 parts page.
On a high-mileage tow rig, flush or replace the cooler as well. The debris from burnt clutches stays in the cooler and will contaminate the new frictions on the first drive.
| Fits | 6L90 2006-17 |
| Part type | Banner Rebuild Kit |
| Condition | New |
| Brand | GM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The 6L90 went into Silverado and Sierra 2500HD/3500HD pickups, Express and Savana vans, and high-output cars such as the Camaro ZL1 and Corvette Z06/ZR1. Confirm your transmission is RPO MYD on the glovebox or door-jamb label before ordering.
The listing photo shows frictions, seals, sealing rings and the separator plate gasket, with no steels called out. Measure your steels and reuse them only if they are flat and show no heat discoloration.
It is the fix if the clutches are burnt, but check line pressure and cooler flow first. A worn pressure regulator valve or a restricted cooler line will burn new clutches just like the old ones.
Use Dexron VI only. GM lists a 6.0 quart fluid change capacity for the 6L90, but a rebuilt unit with an empty converter takes considerably more, so have extra on hand and set the level hot.
Yes. Clear the transmission adaptive values and complete the adaptive learn procedure with a capable scan tool so the controller relearns clutch fill times for the new frictions.
