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6L80 Clutch Drum

$206.99
In stock • ships from the USA • qualifies for FREE shipping

6L80 Clutch Drum, remanufactured and ready to install. Fits the 6L80. Ships fast from the USA.

Fits these transmissions
Secure Stripe checkout • free shipping over $100 • 30-day returns
Secure Stripe checkout
Ships from the USA
30-day returns

About this product

When a 6L80 comes apart with burnt frictions, a cracked housing or a scored bushing bore, reusing the old drum is how rebuilds come back. This is a remanufactured 6L80 clutch drum, the slotted steel housing shown in our photo, for rebuilding the GM six-speed used in 2006-2020 Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, Camaro and Corvette applications. It is aimed at the rebuilder or DIYer who already has the transmission on the bench and needs a sound housing rather than a gamble on a cleaned-up core.

How a clutch drum works in a 6L80

The 6L80 has five clutches and no bands. Two of them, 2-6 and low/reverse, hold parts of the gear train to the case. The other three, 1-2-3-4, 3-5-R and 4-5-6, spin with the input and need drums to hold their plates. The steel plates lock into the slotted outer shell you see in the photo, the frictions ride on a hub inside, and a piston in the drum squeezes the pack when the valve body sends apply oil. Sonnax lists separate bushings for the shared 1-2-3-4/3-5-R drum and for the 4-5-6 drum, which is a quick way to see that these are two different housings. A remanufactured drum is cleaned, inspected and corrected so the spline slots, bushing and sealing surfaces are back in usable shape.

Symptoms of a failed 6L80 clutch drum

Confirm the drum is the problem

Rule out the valve body first; a sticking clutch regulator valve produces the same slips. With the unit apart, inspect the slots for wear steps, check the weld seams for cracks and air-check the piston. GM's bulletin on cracked 1-2-3-4/3-5-R housings describes a soap-and-air leak test that shows the crack plainly. Our 3-5-R clutch failure guide covers the codes and test sequence, and the 6L80 Camaro shift problems guide explains the cold 2-3 flare that is often blamed on hard parts but is caused by trapped air. A 6L80 drum leak tester speeds up the check.

Fitment

This listing is for the 6L80 and does not name a year range, and the 6L80 drums are not interchangeable with each other. Before you order, match the outside diameter, the number of plate slots and the hub design against your old drum and our photo, or send us your year and VIN and we will confirm the correct housing. If you have a first-year unit, compare against the 6L80 clutch drum for 2006. Everything else for this transmission is in the 6L80 collection.

Install notes


Specifications

Fits6L80
Part typeClutch Drum
ConditionRemanufactured
BrandOEM
ShipsFrom the USA
Warranty1-year

Complete the job: parts that go with this

Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

6L80 Clutch Module 2006
6L80 Clutch Module 2006
$139.99

6L80 Clutch Drum: common questions

Which 6L80 drum is this, 3-5-R or 4-5-6?

The listing names it only as a 6L80 clutch drum. Compare the photo with your old housing, counting plate slots and checking the hub, or send us your year and VIN and we will confirm before it ships.

Does remanufactured mean it comes with new clutches?

No. Remanufactured refers to the drum itself being cleaned, inspected and corrected. Install new frictions, steels and seals for the pack.

Will a 6L90 drum work in my 6L80?

Do not assume it will. The 6L90 is the heavy-duty version and its clutch packs differ, so match the drum to your exact unit.

What causes these drums to fail?

Cracked weld seams, worn bushing and sealing surfaces, and steel plate tabs wearing steps into the slots. Overheated or old fluid speeds all of it up.

What fluid and relearn does it need?

DEXRON VI, filled and checked hot at the case plug, followed by a TCM adaptive relearn with a scan tool.


Repair guides for this job

Sources
  1. General Motors — Service Bulletin 09-07-30-004J (hosted by NHTSA). Cracked 1-2-3-4/3-5-R clutch housing symptoms, DTCs P0776, P2715, P2723 and the soap-and-air leak test. static.nhtsa.gov/odi/tsbs/2014/SB-10043845-3346.pdf
  2. Sonnax — GM 6L80 Transmission unit parts. Separate bushings for the 1-2-3-4/3-5-R drum and the 4-5-6 clutch drum; 4-5-6 hub and piston parts. www.sonnax.com/units/301-6l80
  3. Sonnax — Addressing GM 6L80, 6L90 No Reverse Condition. Diagnosing the 3-5-R and reverse apply circuit. www.sonnax.com/tech_resources/1613-addressing-gm-6l80-6l90-no-reverse-condition
  4. General Motors — Preliminary Information PIP5429A, 2-3 Upshift Slip or Flare (hosted by NHTSA). Trapped air in the 3-5-R clutch as a cause of cold 2-3 flare. static.nhtsa.gov/odi/tsbs/2022/MC-10224297-9999.pdf

6L80 Clutch Drum

$206.99
In stock • ships from the USA • FREE shipping • 30-day returns

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