Full teardown rebuild kit for the GM 6L80/6L80E in Silverado, Tahoe, Suburban, Camaro and Escalade: clutch pack, bushings, piston kit, and gaskets.
If your 6L80 has already been diagnosed as a rebuild, not a repair, this is the box that covers the whole job. The 6L80E Super Master Transmission Rebuild Kit carries 35 friction plates and 30 steel plates for every clutch pack in the case, plus apply plates, a bushing kit, a piston kit, the TCM pan gasket and the full set of seals and gaskets. It is built for 6L80 and 6L80E owners with a slipping Silverado, Sierra, Tahoe, Yukon, Suburban, Escalade, Camaro or Corvette who want to restack every pack with new material instead of measuring old frictions and gambling on them.
The 6L80 is a clutch-to-clutch six-speed. It uses five clutch packs: the 1-2-3-4, 3-5-R and 4-5-6 clutches in the input housing, and the stationary 2-6 and low-reverse clutches in the case, plus a low sprag. Every shift is one clutch releasing while another applies, timed by the TEHCM. That means shift quality depends entirely on clean frictions, flat steels and pistons that seal. A standard master kit gives you seals and frictions; this one adds new steels, apply plates, bonded-style piston replacements and bushings, which are the wear items a builder would otherwise have to source one by one after teardown.
Pull the pan before you commit. A little gray paste is normal; flakes of friction lining, chunks of bronze or steel chips mean the unit is coming apart regardless. Check line pressure too, because a worn pump or pressure regulator will burn up new clutches just as fast as it burned the old ones. Our 6L80 pump failure guide explains that test, and the 6L80 common problems guide lays out which failures are fluid, which are valve body and which are hard parts.
The kit is listed for the 6L80 and 6L80E in 2007-2018 Silverado 1500 with the 4.3L, 5.3L and 6.2L, 2007-2013 Avalanche 1500, 2007-2018 Tahoe, Sierra 1500, Suburban 1500, Yukon and Yukon XL, 2010-2015 Camaro, 2006-2013 Corvette, 2014-2017 SS sedan, 2011-2017 Caprice PPV, 2007-2015 Escalade, ESV and EXT, 2006-2009 STS-V and XLR-V, 2009-2015 CTS-V, 2007-2009 H2 and 2008-2009 G8 GT and GXP. It cross-references 24247371, 24265441, 24272305, T19500A, T19502A, 32000K and 408020KD. It is sized for the 6L80 clutch stack only; the heavier 6L90 uses a longer case and different internals. Match those numbers or send us your year and VIN, and see all 6L80 transmission parts for hard parts the kit does not include.
Soak every new friction in Dexron VI before stacking, alternate steels and frictions in the order the pack came out, and set each clearance with a feeler gauge or dial indicator rather than trusting the stack. Seal rings on the input shaft go on far easier with a 6L80 seal ring expander tool, and the new bushings need a proper bushing driver set so they seat square. Inspect the 4-5-6 hub, drums, sprag and pump gears before reassembly. The kit has no filter listed, so plan on a new one, and service or replace the converter. After install, fill with Dexron VI through the check plug procedure, reset adapts and run a fast learn before road testing.
| Transmission | GM 6L80 / 6L80E (2007-2018) |
| Kit type | Super master rebuild — 30pc steel + 35pc friction clutch pack, apply plates, bushing kit, piston kit, TCM gasket, seals |
| Replaces OE | 24247371, 24265441, 24272305, T19500A, T19502A, 32000K, 408020KD |
| Fits | Silverado/Sierra 1500, Avalanche, Tahoe, Suburban, Yukon/Yukon XL, Camaro, Corvette, SS Sedan, Caprice PPV, Escalade/ESV/EXT, STS-V, XLR-V, CTS-V, H2, G8 GT/GXP |
| Item weight | 22 lb |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Besides seals, gaskets and frictions, it includes 30 steel plates, apply plates, a bushing kit and a piston kit, so every wear surface in the clutch packs is new.
No. This kit is listed for the 6L80 and 6L80E only. The 6L90 has a longer case and heavier internals, so use a kit specifically listed for it.
A filter is not listed in the kit contents. Order a 6L80 filter and pan gasket kit with it, and check GM bulletin 23-NA-224 if you are matching the latest filter and seal numbers.
If the old clutches burned, the converter is full of the same debris. Most rebuilders replace or rebuild it, and also flush or replace the cooler, so contamination does not go straight back into the new packs.
Use Dexron VI. After the rebuild, reset transmission adapts and perform a fast learn with a scan tool so the TCM relearns clutch fill on every pack.
