6T75 Clutch Drum 2007-13, new and ready to install. Fits the 6T75. Ships fast from the USA.
The 6T75 is the heavier-duty sibling of the 6T70, built for GM's larger front-drive crossovers and sedans, and it shares the same weak spot: the 3-5-R waved plate. When that plate fractures, the teeth it sheds get trapped between the clutch plates and the housing, and the damage rarely stops at the plate. If a teardown on your 6T75 turned up cracked or hammered drum splines, this new GM clutch drum for 2007-13 units is the replacement. It comes as the complete input shaft and 3-5 reverse/4-5-6 clutch housing, not a bare shell.
Two clutch packs share this housing. The 3-5-R pack holds third, fifth and reverse; the 4-5-6 pack holds fourth, fifth and sixth. Apply fluid reaches each piston through the sealing rings on the shaft, and the outer splines of the drum carry the steel plates that the frictions clamp against. Because the drum turns with the input shaft, every bit of torque in those five ranges passes through those splines. A housing with worn sealing ring lands loses apply pressure and slips; one with damaged splines lets the steels cock and bind, and the pack can no longer release or apply cleanly.
GM was concerned enough about the 3-5-R waved plate to issue Special Coverage 14404B, which lists 6T70 and 6T75 applications and describes cracked or fractured plates causing a loss of 3rd, 5th and reverse. The plate itself is cheap. The drum becomes part of the job when it is damaged, and Sonnax reports that a broken plate usually tears up the drum splines. So pull the pan and look for plate fragments, then inspect the housing once it is out: run a fingernail along the spline faces, look for peened or cracked teeth and check the piston bore for scoring. If the splines are smooth, a new plate and clutches may do. If they are not, replace the housing. Our 6T70 Acadia common problems guide covers the wave plate bulletin in detail and applies to the 6T75 units in the same family, and the 3-4 clutch failure guide explains which pack is working on each shift.
Listed for the 6T75 from 2007 through 2013. GM rolled out Generation 2 changes around 2013, so the last year of this range is the one to double-check. Hold the new part next to yours: shaft length, spline count, ring groove positions and housing casting should all match. If anything differs, stop and send us your year and VIN. If your build sheet shows a 6T70 instead, the 6T70 clutch drum 2007-13 is the listing to use. Browse every 6T70 and 6T75 part on our 6T70/6T75 transmission page.
| Fits | 6T75 2007-13 |
| Part type | Clutch Drum |
| 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.
In this case, yes. The part is the input shaft with the 3-5 reverse and 4-5-6 clutch housing, which shops call either name.
No. It is the shaft and housing only. Plan on an updated 3-5-R waved plate, both clutch packs and new piston seals.
Only if the splines and piston bore are undamaged. Peened or cracked spline teeth will chew up the new plates and the repair will not last.
GM used it in larger front-drive models such as the Acadia, Traverse, Enclave and some sedans, depending on engine. Check the RPO code in the glovebox or send your VIN.
Fill with DEXRON-VI, check the level hot, clear the transmission adaptive values and perform the drive learn so shift quality settles in.
