Vacuum test guide
Id guide
Vbl available

GM

6T70 (Gen. 1) Transmission

Tech Resources View all Transmissions
Remanufactured Valve Body

Required

6T70 (Gen. 1), 6T75 (Gen. 1) Remanufactured Valve Body GM6T70-1L

6T70 (Gen. 1), 6T75 (Gen. 1)
Remanufactured Valve Body GM6T70-1L

Fits '09-later units with 1.83 ratio 3-5-R clutch regulator valve. Sold without TEHCM.

Required

6T70 (Gen. 1), 6T75 (Gen. 1) Remanufactured Valve Body GM6T70-1E

6T70 (Gen. 1), 6T75 (Gen. 1)
Remanufactured Valve Body GM6T70-1E

Fits '07-'08 units with 1.35 ratio 3-5-R clutch regulator valve. Sold without TEHCM.

Internal
Zip Kits

3-5-R Drum Saver Kit 124555K

    Helps cure:
  • Code P0776
  • Flare shifts
  • Harsh Reverse
  • No Reverse
  • 2-3 Harsh
  • No 3rd
  • 4-5 Harsh
  • No 5th
Zip Kits

Pressure Switch Rebuild Kit 124740-30K

    Helps cure:
  • Pressure switch codes
  • Switch codes
  • Pressure control out-of-range codes
  • Slips, flares & bind-ups
  • Failsafe mode
  • Erratic TCC apply
  • Harsh shifts
  • Shift codes
Zip Kits

Pressure Switch Rebuild Master Pack 124740-28K

    Helps cure:
  • Pressure switch codes
  • Switch codes
  • Pressure control out-of-range codes
  • Slips, flares & bind-ups
  • Failsafe mode
  • Erratic TCC apply
  • Harsh shifts
  • Shift codes
Pump
Zip Kits

Pump Vane 124533

  • Thickness: 0.079"
  • Width: 0.468"
  • Height: 0.864"
    Helps cure:
  • Lost or damaged component
Valve Body
Zip Kits

4-5-6 Accumulator Piston Kit 124740-04K

    Helps cure:
  • 3-4 Flare
  • Ratio codes
  • 4-5-6 Clutch burned
  • Slipping gears
  • 3-4 Harsh
Zip Kits

Checkball 10000-08

Imidized Plastic, .250" Dia.

  • Material: Imidized Plastic
  • Dia.: 0.250"
    Helps cure:
  • Lost or damaged component
Zip Kits

Isolator Valve Kit 124740-03K

    Helps cure:
  • Low line pressure
  • Line pressure instability
  • No line rise
  • Burnt clutches
  • Harsh shifts
  • Shift concerns
Zip Kits

Isolator Valve Spring 124740-16

    Helps cure:
  • No line rise
  • Line pressure instability
Zip Kits

O-Ringed End Plug Kit 124740-02K

    Helps cure:
  • Pressure loss
  • Shift concerns
  • Burnt clutches
  • TCC apply concerns
Zip Kits

Oversized 2-6 Clutch Regulator Valve Kit 124740-17K

    Helps cure:
  • 1-2 Flare
  • 5-6 Flare
  • 2nd Slip
  • 6th Slip
  • No 2nd
  • No 6th
  • Ratio codes
  • 2-6 Clutch burned
  • Erratic shift timing
Zip Kits

Oversized 3-5-R Clutch Regulator Valve Kit 124740-21K

Replaces 1.83 ratio OE valve with .335" dia. small spool.

    Helps cure:
  • 2-3 Flare
  • 4-5 Flare
  • Delayed Reverse
  • Reverse slip
  • 3-5-Reverse clutch burned
  • Ratio codes
  • Bind-up
  • Burnt Reverse clutch
Zip Kits

Oversized 3-5-R Clutch Regulator Valve Kit 124740-26K

Replaces 1.35 ratio OE valve with .390" dia. small spool.

    Helps cure:
  • 2-3 Flare
  • 4-5 Flare
  • Delayed Reverse
  • Reverse slip
  • 3-5-Reverse clutch burned
  • Ratio codes
  • Bind-up
Zip Kits

Oversized AFL/Solenoid Pressure Regulator Valve 124740-01

    Helps cure:
  • Solenoid performance codes
  • Wrong gear starts
  • Clutch failure
Zip Kits

Oversized Actuator Feed Accumulator Piston Kit 124740-40K

    Helps cure:
  • Harsh shifts
  • Soft shifts
  • Solenoid performance codes
Zip Kits

Oversized Clutch Boost/Latch Valve 144740-23

Fits any of three locations.

    Helps cure:
  • Shift quality is not load sensitive
  • Harsh shifts
  • Slips & flares
  • Delayed engagement
  • Burnt clutches
  • Slide shifts
  • Slip codes
Zip Kits

Oversized Pressure Regulator Valve Kit 124740-12K

    Helps cure:
  • Erratic line pressure
  • Poor shift quality
  • Burnt clutches
  • Low converter & lube flow
  • Overheating
  • TCC apply & release concerns
Zip Kits

Oversized TCC Control Valve Kit 124740-14K

    Helps cure:
  • Excess TCC slip
  • Low cooler flow
  • Overheating
  • TCC apply & release concerns
  • Low converter & lube flow
  • TCC apply codes
  • TCC lining failure
Zip Kits

Oversized TCC Regulator Valve Kit 124740-24K

    Helps cure:
  • Code P0741
  • Code 742
  • Harsh TCC apply
  • TCC slip
  • Loss of fuel economy
  • Low TCC apply pressure
  • Overheated fluid & TCC lining
Zip Kits

Zip Kit® 6T70-ZIP

    Helps cure:
  • Burnt clutches
  • Line pressure instability
  • Loss of fuel economy
  • No line rise
  • Pressure loss
  • Shift concerns
  • TCC apply & release concerns
  • TCC codes
  • Pressure switch codes
Other
Zip Kits

Tool Kit F-124740-TL17

Zip Kits

Tool Kit F-124740-TL26

Zip Kits

Tool Kit F-124740-TL21

Zip Kits

Tool Kit F-124740-TL12

Zip Kits

Tool Kit F-104740-TL12

Zip Kits

Tool Kit 124740-TL40

Zip Kits

Tool Kit F-124740-TL14

Zip Kits

Tool Kit F-144740-TL22

Zip Kits

Tool Kit F-124740-TL24