![Zip Kits](data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 750 580"%3E%3C/svg%3E)
September 16, 2005
GM TCC Circuits
Maura Stafford
Internal
Differential Carrier-to-Case Shim 75410-10
- Material: Steel
- Thickness: 0.010"
- Inner Dia.: 1.445"
- Outer Dia.: 2.170"
-
Helps cure:
- Driveline noise
- Excess backlash
- Reduced differential bearing life
Differential Side Gear Thrust Washer 75890-30
- Material: Steel
- Outer Dia.: 2.188"
- Inner Dia.: 1.410"
- Thickness: 0.031"
-
Helps cure:
- Excess differential/axle backlash
- Differential side gear thrust washer failure
- Washers not serviced separately
Planetary Thrust Bearing 34821-01
- Bearing Style: Enclosed
- Material: Hardened Steel
- Outer Dia.: 1.802"
- Thickness: 0.168"
- Inner Dia.: 1.132"
-
Helps cure:
- Bearing noise
- Bearing failure
Shim 84733-10
Input Clutch Hub
- Material: Steel
- Inner Dia.: 2.385"
- Outer Dia.: 2.950"
- Thickness: 0.010"
-
Helps cure:
- Driveline clunk
- Reduced bearing life
- Loss of lube oil
- Rapid sealing ring wear
Shim 84733-20
Input Clutch Hub
- Material: Steel
- Outer Dia.: 2.950"
- Thickness: 0.020"
- Inner Dia.: 2.385"
-
Helps cure:
- Driveline clunk
- Reduced bearing life
- Loss of lube oil
- Rapid sealing ring wear
Pump
Pump Slide Pivot Pin 84881
Solid version. Does not fit late-style pump.
-
Helps cure:
- Erratic line pressure
- Low line pressure
- High line pressure
Valve Body
Modulated Line Boost Valve Kit 84754-17K
High Ratio, .199" dia. small spool
-
Helps cure:
- Low line rise
- Soft shifts
- 2nd Clutch distress
- 3rd Clutch distress
Modulated Line Boost Valve Kit 84754-12K
Low Ratio, .276" dia. small spool
-
Helps cure:
- Low line rise
- Soft shifts
- 2nd Clutch distress
- 3rd Clutch distress
Oversized 1-2 & Reverse Servo Boost Valve Kit 84754-40K
Fits either of 2 locations
-
Helps cure:
- 1-2 Flare
- Delayed engagement
- Low Reverse pressure
- 1-2 Band burned
Oversized Pressure Regulator Valve Kit 84754-46K
-
Helps cure:
- Erratic line pressure
- Burnt clutches
- Poor shift quality
- Overheating
- TCC apply & release concerns
- Low converter & lube flow
-
Tooling:
- 84754-TL46
Oversized TCC Apply Valve Kit 84754-16K
'96-Earlier with steel valve
- Material: Steel
-
Helps cure:
- Code 39, 740, 1870
- Falls out of lockup when hot
- Overheated converter
- Shudder
- Low cooler flow
-
Tooling:
- 84754-TL5
Reverse & Modulated Line Boost Valve Kit 84754-25K
High Ratio
-
Helps cure:
- Low line rise
- Low Reverse boost
- Soft shifts
- 2nd Clutch distress
- 3rd Clutch distress
Reverse & Modulated Line Boost Valve Kit 84754-24K
Low ratio
-
Helps cure:
- Low line rise
- Low Reverse boost
- Soft shifts
- 2nd Clutch distress
- 3rd Clutch distress
TCC Apply Valve Kit 84754-22K
1996 & earlier with steel valve
- Material: Steel
-
Helps cure:
- Code 39, 740, 1870
- Falls out of lockup when hot
- Overheated converter
- Shudder
- Low cooler flow
Case
Oversized Accumulator Pin 84573-01K
Fits 1-2 and 2-3 accumulator locations only
-
Helps cure:
- Worn accumulator piston pin bore
- Soft & inconsistent shift feel
- 1-2 Flare
- 2-3 Flare
- 2nd Slip
- 3rd Slip
- 2nd Clutch burned (GM)
- 3rd Clutch burned
- No 2nd
- No 3rd
-
Tooling:
- 84573-02K
Oversized Accumulator Pin & Reamer Kit 84573-02K
Fits 1-2 and 2-3 accumulator locations only
-
Helps cure:
- Worn accumulator piston pin bore
- Soft & inconsistent shift feel
- 1-2 Flare
- 2-3 Flare
- 2nd Slip
- 3rd Slip
- 2nd Clutch burned (GM)
- 3rd Clutch burned
- No 2nd
- No 3rd
Other
1-2 or Reverse Servo Sleeve Kit 84791-01K
This kit will replace the 1-2 or reverse servo in 4T60 applications. In the 4T60-E, this will replace the reverse servo only
-
Helps cure:
- Delayed Reverse
- Reverse slip
- Low line pressure
- No 3rd
- 2-3 Flare
- Delayed Forward only in OD range
Side Cover Repair Plate 84995-01
For stamped steel side covers
-
Helps cure:
- Leakage of oil at side cover to channel plate inner gasket