6L90 Banner Rebuild Kit, new and ready to install. Fits the 6L90. Ships fast from the USA.
This is the budget-minded way to put a worn 6L90 back on the road. When a heavy-duty Silverado or Sierra, an Express or Savana work van starts flaring between shifts, takes a beat to engage Reverse, or leaves black fluid on the dipstick, the friction plates and rubber seals are the usual casualties. This banner kit bundles those soft parts so a rebuilder can renew every clutch pack in one order and keep the money for the hard parts the teardown actually condemns.
The 6L90 uses five clutch packs, two of which apply in each forward gear, and every pack depends on its frictions and its piston seals. Lose either and the controller sees slip it cannot correct. The listing photo for this kit shows the complete overhaul gasket and seal set, including the pan gasket, molded piston seals and O-rings, three valve body separator plate gaskets, and a deep stack of frictions for the clutch packs. It is the middle tier between a gasket-only overhaul set and the 6L90 master rebuild kit, which adds more of the service parts in one box.
Keep in mind that GM's own problem list for this unit includes converter shudder and valve body faults. Sonnax reports that the torque converter is the most common root failure in full-size 6L80 and 6L90 applications, so a shudder at steady cruise is a converter complaint, not a reason to buy a clutch kit.
Pull the pan and look at what is on the magnet. Fine gray paste is normal; flakes of friction lining or bronze bushing material mean the unit is due. Next, put a gauge on line pressure. A GEARS case study on a 6L90 found pressure stuck at 65 to 70 psi with no rise, which burned the clutches; rebuilding without fixing that circuit would have repeated the failure. Our Silverado 2500 shift problems guide walks through the order of checks, and if your codes point at a solenoid instead, read the 6L90 shift solenoid guide first.
This kit is listed for the GM 6L90 (RPO MYD) without a specific year range. It is a 6L90 kit, not a 6L80 kit; the two share a case design, but several internal parts are sized differently. Because the listing does not narrow the years, match the new frictions to your old plates pack by pack before assembly, checking diameter, tooth count and thickness. If you want us to check it first, send your year and VIN. The year-specific kits and all other parts for this unit are on the 6L90 parts page.
Pair the kit with a clean cooler and a properly working thermal bypass so the new frictions do not cook on the first tow.
| Fits | 6L90 |
| Part type | Banner Rebuild Kit |
| Condition | New |
| Brand | OEM |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The listing photo shows the overhaul gasket and seal set, three valve body separator plate gaskets, and a large set of friction plates. Compare the contents with your teardown before you start so you know what else to order.
Check the RPO label for MYD to confirm the 6L90, then use your model year and VIN. Send them to us before ordering if you want the fitment checked against your truck or van.
Choose the banner kit when your steels, drums and bushings are reusable and you mainly need frictions and seals. Choose a master kit when the teardown shows more worn service parts.
Probably not. A steady-speed shudder with the converter clutch applied is usually a converter problem, and GM has issued bulletins on it. Fix the converter, and use this kit only if the clutch packs are also worn.
Dexron VI. Fill it, run the engine, and set the level hot at the check plug, then clear the adaptive values and run the relearn.
