FREE shipping over $100  •  Ships fast from the USA  •  Secure checkout  •  30-day returns
Home / Shop / Rebuild Kits / 6T70 Gen 1 Master Rebuild Kit with Pistons 2007-2012
Rebuild Kits

6T70 Gen 1 Master Rebuild Kit with Pistons 2007-2012

$265.99
In stock • ships from the USA • qualifies for FREE shipping

Gen 1 master overhaul kit with bonded pistons for the 2007-2012 GM 6T70 and 6T75 in the Acadia, Traverse, Malibu, Equinox and Outlook.

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

If your 2007-2012 GMC Acadia, Chevrolet Traverse, Malibu or Equinox V6, Buick Enclave, Saturn Outlook or Pontiac G6 is slipping on the 2-3 change, has lost 3rd, 5th and Reverse, or engages late and hard on a cold morning, the transaxle is a first-generation GM 6T70 or 6T75 and it is due for an overhaul. This master kit, kit reference K196900A, is the complete soft-parts package for that job on a Gen 1 unit, and unlike a basic overhaul set it includes bonded pistons.

What the master rebuild kit does in a Gen 1 6T70

The 6T70 and 6T75 make six forward speeds with five clutches: three stationary clutches (Low/Reverse, 2-6 and 1-2-3-4) and two rotating clutches (3-5-R and 4-5-6) that use balance pistons. Every gear is two clutches applied together, and the control module, which lives inside the transaxle on the valve body, learns how long each clutch takes to fill. When frictions wear and piston seals harden, those fill times drift, and the unit starts flaring, binding or slipping. This kit replaces the friction plates, steel plates, the gasket set, the rubber, Teflon and O-ring sealing set and the bonded clutch pistons, so every pack is renewed and every circuit is resealed in one teardown. Hard parts are not included: drums, planetaries, the pump, the valve body, the wave plates and the filter are reused after inspection or bought separately.

Symptoms that point to a Gen 1 overhaul

How to confirm before you buy

Scan for codes first, then drain a sample and look at it. Metal glitter plus loss of 3rd, 5th and Reverse almost always means a broken 3-5-R wave plate, and GM's own procedure for that failure is a full teardown: separate the case halves, clean all debris and replace the pump fluid filter and the control solenoid filter plate. If you only have a harsh shift with no codes, rule out shift adapts and the valve body before you commit to a rebuild. Our 6T70 common problems and fixes guide walks through those checks, and 6T70 rebuild cost and what drives it shows when an overhaul beats a used or remanufactured unit.

Fitment: Generation 1, 2007-2012

The listing covers Gen 1 6T70, 6T70E, 6T75 and 6T75E units in the GMC Acadia 2007-2012 3.6L and Terrain 2011-2012 3.0L; Chevrolet Malibu 2009-2012 3.6L, Traverse 2009-2012 3.6L, Equinox 2010-2012 3.0L and Impala 2012 3.6L; Buick LaCrosse 2010 3.0L; Cadillac SRX 2012 3.6L; Pontiac G6 2007-2010 3.5L and Torrent GXP 2008-2009 3.6L; Saturn Aura XR 2007-2009 3.6L, Outlook 2007-2010 3.6L and Vue XR 2008-2010 3.6L; and the 2009 Suzuki XL-7 3.2L.

Generation matters more than the calendar. GM's 2013 controls update changed the 1-2-3-4 piston (Gen 2 pistons have notches cut in the legs), went from seven to nine thinner 1-2-3-4 plates, and revised the wave plates and frictions in the Low/Reverse, 2-6 and 3-5-R clutches. For 2013, only RPO M7W or M7U (6T70) and M7V or M7X (6T75) got the update; other 2013 units stayed Gen 1 until 2014 production. Check the RPO on the glove box label, count the plates you remove against the kit, or send us your year and VIN. A Gen 2 unit needs the Gen 2 master kit for 2013-up. Every 6T70 and 6T75 part we carry is on the 6T70 transmission page.

Install notes


Specifications

Main fitment
Kit reference
Includes
Not included
Does not fit

Complete the job: parts that go with this

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

6T75 Shift Kit 2013
6T75 Shift Kit 2013
$125.99
6T70 Pump 2013
6T70 Pump 2013
$125.99
6T70 Clutch Drum 2011
6T70 Clutch Drum 2011
$104.99

6T70 Gen 1 Master Rebuild Kit with Pistons 2007-2012: common questions

Will this kit fit my 2013 Traverse or Acadia?

Only if the transmission is still Gen 1. In 2013, units with RPO M7W, M7U, M7V or M7X are Gen 2 and need the Gen 2 kit; other 2013 units stayed Gen 1. Check the glove box RPO label or send us your VIN.

Does it fit the 6T75 as well as the 6T70?

Yes. The kit covers Gen 1 6T70, 6T70E, 6T75 and 6T75E units from 2007 to 2012.

What is not in the box?

Hard parts: drums, planetaries, pump, valve body, wave plates and the filter. Plan on the updated wave plates, a new pump fluid filter and a new solenoid filter plate.

Why does it matter that pistons are included?

The bonded pistons carry the apply seals molded on. When the rubber hardens or a piston leaks, the clutch loses apply pressure and slips. Replacing them during the overhaul removes that as a cause of comebacks.

What fluid and relearn does it need after the rebuild?

Dexron VI only. Check the level at operating temperature, then run Service Fast Learn Adapts with a capable scan tool so the module relearns clutch fill times for the new parts.


Repair guides for this job

Sources
  1. ATRA — 6T70 Product Issues and Updates (Steve Garrett). 2013 Gen 1/Gen 2 split by RPO, broken 3-5-R wave plate codes, updated wave plates in all clutches, Service Fast Learn Adapts after repair. atracom.blob.core.windows.net/webinars/gm/6t70_product_issues.pdf
  2. General Motors via NHTSA — Special Coverage Adjustment 14404B, Transmission Clutch Wave Plate (August 2016). Loss of 3rd, 5th and Reverse from a cracked wave plate; case split, debris cleaning, pump filter and solenoid filter plate replacement. static.nhtsa.gov/odi/tsbs/2016/MC-10126145-9999.pdf
  3. General Motors via NHTSA — Service Bulletin 09-07-30-012F, No Reverse, 3rd or 5th, DTC P0776 (October 2012). Broken wave plate over-stroking the 3-5-R piston on early 6T70/6T75 units. static.nhtsa.gov/odi/tsbs/2012/SB-10062512-7690.pdf
  4. Sonnax — GM Gen. 1 6T70/75/80 Concerns and Repair Techniques (webinar). Five-clutch layout and the Gen 2 change list: notched 1-2-3-4 piston, nine versus seven plates, new wave plates and frictions. d2q1ebiag300ih.cloudfront.net/uploads/tech_resource/file/556/Sonnax_6T70_6F50_Webinar.pdf

6T70 Gen 1 Master Rebuild Kit with Pistons 2007-2012

$265.99
In stock • ships from the USA • FREE shipping • 30-day returns

Related products
6T70 Clutch Drum 2007
Hard Parts
6T70 Clutch Drum 2007
6T70
$238.99
View
6T75 Pump 2007
Hard Parts
6T75 Pump 2007
6T75
$118.99
View
6T70 Clutch Module 2007-2012
Rebuild Kits
6T70 Clutch Module 2007-2012
6T70
$113.87
View
6T70 Planetary
Hard Parts
6T70 Planetary
6T70
$62.82
View