GM
6T70 (Gen. 1) Transmission
6T70 (Gen. 1) Tech Resources Valve Body Layout Vacuum Test Guide View all Transmissions
Remanufactured Valve Body
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.
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.
Internal
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
-
Tooling:
- 124740-TL30
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
Valve Body
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
Checkball 10000-08
Imidized Plastic, .250" Dia.
- Material: Imidized Plastic
- Dia.: 0.250"
-
Helps cure:
- Lost or damaged component
Isolator Valve Kit 124740-03K
-
Helps cure:
- Low line pressure
- Line pressure instability
- No line rise
- Burnt clutches
- Harsh shifts
- Shift concerns
O-Ringed End Plug Kit 124740-02K
-
Helps cure:
- Pressure loss
- Shift concerns
- Burnt clutches
- TCC apply concerns
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
-
Tooling:
- F-124740-TL17
- VB-FIX
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
-
Tooling:
- F-124740-TL21
- VB-FIX
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
-
Tooling:
- F-124740-TL26
- VB-FIX
Oversized AFL/Solenoid Pressure Regulator Valve 124740-01
-
Helps cure:
- Solenoid performance codes
- Wrong gear starts
- Clutch failure
-
Tooling:
- F-104740-TL12
- VB-FIX
Oversized Actuator Feed Accumulator Piston Kit 124740-40K
-
Helps cure:
- Harsh shifts
- Soft shifts
- Solenoid performance codes
-
Tooling:
- 124740-TL40
Oversized Clutch Boost/Latch Valve 144740-23
Fits any of three locations (see below).
-
Helps cure:
- Shift quality is not load sensitive
- Harsh shifts
- Slips & flares
- Delayed engagement
- Burnt clutches
- Slide shifts
- Slip codes
-
Tooling:
- F-144740-TL22
- VB-FIX
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
-
Tooling:
- F-124740-TL12
- VB-FIX
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
-
Tooling:
- F-124740-TL14
- VB-FIX
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
-
Tooling:
- F-124740-TL24
- VB-FIX
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
