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Internal
3rd Clutch Piston Lip Seal 84965-SK
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:
- Lost or damaged component
Shim 84733-20
Input clutch endplay 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
Shim 84733-10
Input clutch endplay 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
Pump
Valve Body
(View Valve Body Layout Diagram)
2-3 Shift Valve 84754-36K
3-2 Manual Downshift Valve 84754-37K
Modulated Line Boost Valve Kit 84754-17K
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
Reverse Boost Valve Kit 84754-19K
TCC Apply Valve Kit 84754-22K
TCC Regulator & Isolator Valve Kit 84754-01K
Case
Differential Lube Tube Retainer Kit 84532-01K
-
Helps cure:
- Differential lube failure
- Difficulty in retaining differential lube tube
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
Servo/Band
Extended Length Forward Band Servo Pin Kit 84571-01K
-
Helps cure:
- Band failure
- Forward slip
- Burnt Forward band
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
Tech Resources
July 20, 2021
GM 4T60, 4T60-E Valve Body Layout
March 28, 2017
Stop 4T60-E, 4T65-E Case Wear, Band Slippage & Breakage with a Longer Servo Pin
Jim Dial
January 01, 2013
GM 4T60-E Valve Body Identification
Valve Body Xpress
January 01, 2013
GM 4T60-E Soft Shifts
Valve Body Xpress
October 22, 2011
It Is Never Wrong to Do Right
Dan Tucker
September 30, 2009
Easy Fix for 4T60-E Accumulator-Housing Pin Wear
Gregg Nader
April 02, 2008
An Easier Way to Rebuild Planets
Gregg Nader
September 05, 2007
Conquering the Planets
Gregg Nader
July 31, 2007
Deja Vu All Over Again
Ed Lee
May 19, 2006
SonnaFlow® Chart: 4T60-E (Normal)
May 19, 2006
SonnaFlow® Chart: 4T60-E (Poor)
May 19, 2006
SonnaFlow® Chart: 4T60-E (Normal & Poor)
September 16, 2005
GM TCC Circuits
Maura Stafford
August 14, 2004
Good Vibrations, 4T60-E Differential Problems
Gary Carne
September 15, 2003
Beyond 1870: GM Converter Codes P0741, P0742 and 1887
Gregg Nader