6L80 Sprag Clutch 2006, used and ready to install. Fits the 6L80. Ships fast from the USA.
This is more than a bare sprag. It is a used aluminum 2-6 and low/reverse center support for 2006 and later 6L80 transmissions, supplied loaded: clutches, steels, piston, snap rings, clips and the low sprag already in it. It suits a Silverado, Sierra, Tahoe, Yukon or Escalade owner chasing a slip in first, second, sixth or Reverse, or a builder who found a cracked or scored support during teardown. Each unit was taken apart and checked for cracks before being offered.
The center support is the stationary housing in the middle of the case that holds two of the 6L80's five clutches. The 2-6 clutch applies with the 1-2-3-4 clutch for second gear and with the 4-5-6 clutch for sixth. The low/reverse clutch applies with 3-5-R for Reverse and briefly helps at a first-gear launch. The low sprag rides with them and holds the output carrier through first gear once the low/reverse clutch releases at about 2 mph. Oil reaches both pistons through feed holes in the support that line up with the case and upper valve body, which is why the 6L80 and 6L90 versions are not interchangeable.
Use the gear pattern. A problem shared by second and sixth points at 2-6; one shared by first and Reverse points at low/reverse; first only, right after launch, points at the sprag. Check fluid level and run a mainline pressure test first, since low pressure makes every clutch slip. If the trouble began right after an upper valve body was replaced, GM bulletin 16-NA-130 notes the wrong upper valve body causes no Reverse and no second because these center support feed holes differ by transmission. Our 6L80 common problems and fixes guide lays out the gear chart, and the 6L80 Camaro common problems guide covers the valve body mix-up in detail.
This support is for 2006 and later 6L80 units only. It does not fit the 6L90, whose drums and supports are different. Confirm the RPO on your vehicle is MYC (6L80) rather than MYD (6L90) on the vehicle service parts label, and compare casting details with your old support before installing. Send your year and VIN if you want us to confirm. Browse the full 6L80 parts collection, or if you only need a new sprag, see the new 6L80 low sprag assembly.
Even though the support comes loaded, it is a used part, so inspect it yourself before it goes in. Check the sprag freewheels in the correct direction, look over the friction plates, and air-check both the 2-6 and low/reverse pistons once it is in the case. Many builders refresh the support with a 6L80 master rebuild kit with frictions and filter or a 5-piece bonded piston set while the unit is apart. Refill with DEXRON-VI by the check plug method, then reset adapts and relearn.
| Fits | 6L80 2006 |
| Part type | Sprag Clutch |
| Condition | Used |
| 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.
No. It is a used 2-6 and low/reverse center support with clutches, steels, piston, snap rings, clips and the low sprag installed.
No. It is for the 6L80 only. The 6L90 uses different drums and supports. Check that your RPO code is MYC, not MYD.
The 2-6 clutch handles second and sixth, the low/reverse clutch handles Reverse and helps first-gear launch, and the sprag holds first gear after takeoff.
Yes. The support was disassembled and checked for cracks and other damage before listing. You should still inspect the frictions and air-check the pistons at install.
GM bulletin 16-NA-130 describes this: the wrong upper valve body does not line up with the center support feed holes. Verify the valve body before replacing the support.
Fill with DEXRON-VI using the check plug procedure, since there is no dipstick, then reset transmission adapts and complete a relearn drive.
