6L80 Input Drum 2006, used and ready to install. Fits the 6L80. Ships fast from the USA.
If your 2006 6L80 lost reverse, flares into third, slips in fifth, or set P0776, P2715 or P2723, the input drum is one of the first parts a rebuilder checks. This listing is a used GM input drum for a 2006 unit, the first model year of the 6L80, which went into early Corvettes and GM full-size trucks and SUVs. Our photo shows the input shaft with its clutch housing, the way it comes out of the case as one rotating assembly.
The 6L80 is a clutch-to-clutch six-speed with no bands. The input drum is driven straight off the torque converter turbine and carries the rotating clutches that send engine power into the planetary gearsets. Sonnax lists a single 1-2-3-4/3-5-R drum bushing for this unit, which reflects how those two clutch packs share one housing, while the 4-5-6 clutch sits on its own hub and drum. Fluid to apply the pistons is fed from the pump cover through sealing rings on the stator shaft, so the drum's ring bores and bushing surface matter as much as the steel itself. If the housing cracks or the ring lands wear, apply pressure leaks away and the clutches it serves slip and burn.
GM's bulletin 09-07-30-004J describes exactly this set of complaints from a cracked 1-2-3-4/3-5-R clutch housing. The same bulletin also covers leakage at the pump cover sealing rings on 6L80 units built before December 2008, which produces similar flares and harsh engagements. A 2006 transmission falls inside that window, so check the pump rings along with the drum.
Scan for codes first, then check fluid level and condition. If the valve body tests good, the housing can be air-checked on the bench or with the transmission apart; a soap-and-air test will show a crack that bleeds pressure. Our 6L80 3-5-R clutch failure guide walks through the codes and the no-reverse diagnosis, and the 6L80 common problems article covers the valve body faults that mimic a bad drum. An input drum air check tester makes the pressure test simple.
This drum is listed for 2006 6L80 transmissions. GM revised internal parts during the run, and a 6L90 drum is not the same part, so compare the old housing's shaft length, spline count and casting marks against our photo before you order, or send us your year and VIN and we will check it. A drum without a year in the title is also available as the 6L80 input drum, and the rest of our GM six-speed parts are in the 6L80 collection.
| Fits | 6L80 2006 |
| Part type | Input Drum |
| Condition | Used |
| 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.
It is listed for 2006 units. Later drums often look identical but GM made running changes, so compare the shaft, splines and casting marks against your old drum or send us year and VIN to confirm.
It can be. A cracked 1-2-3-4/3-5-R housing causes no reverse, delayed reverse and slips in fifth, often with P0776, P2715 or P2723. A sticking 3-5-R regulator valve in the valve body can cause the same complaint, so test both.
New frictions, steels and piston seals for the packs it carries, the pump cover sealing rings, a filter and seal, and fresh DEXRON VI.
No. It is a used hard part shown as the shaft and housing assembly. Plan on installing new clutch plates and seals during the rebuild.
Yes. Run the TCM clutch fast adapt or adaptive relearn with a capable scan tool after the rebuild so shift timing matches the new clutch clearances.
