Description: The ATSG GM THM 4L60E / 4L65E / 4L70E Transmission Update Handbook Covers engineering changes that have occurred from 1993 to 2009, parts affected by the change, interchangeability, and part numbers! A must for 4L60E rebuilders!Since the introduction of the THM 4L60E transmission in model year 1993, there have been many major engineering design changes to improve durability and reliability. These changes have affected nearly every part used in the THM 4L60E. This "Update Handbook" will explain each change, the parts affected by the change, and any parts interchangeability concerns created by the change. Beginning at the start of production for model year 2001, General Motors introduced a new transmission designated THM 4L65E with many engineering changes. This unit is found in any vehicle with 5.3L or a 6.0L engine that was previously equipped with the THM 4L60E transmission. We will also cover the changes in the THM 4L65E transmission in this booklet. For the 2006 model year the 4L70E was introduced to be used behind the 6.0L or larger gas engines which received heavier duty parts to handle additional horsepower. There is no external way to distinguish the 4L70E from the 4L65E, however, the vehicle identification tag should have an M70 designation if the vehicle was originally equipped with a 4L70E. Also included will be the additions the 4L70E transmission received. Contents: Pump Change for Added "PWM" Tcc SolenoidPump Change for Bolt On Bell HousingsChange in Bell Housings for 1998Pump Change for 13 Valve Rotor and SlidePump Interchange Chart3-2 Downshift Solenoid ChangeSpacer Plate Identification by Model Code, 1993 - 2009New Design SolenoidsInternal Harness IdentificationPremature Low / Reverse Clutch FailureNew Valve Body and Manual Valve for 1996Soft 1-2 Upshift, New Accumulator Valve SpringAccumulator Piston WearNew Design 1-2 Accumulator PistonTransmission and/or Engine OverheatPush-In Cooler Line FittingsIntermittent Pressure Rise, 1996 Models OnlyPremature 3-4 Clutch Failure, Thicker SteelsHigher Gear Start or Lack of Pressure RiseNew Design Output Speed SensorsStamped Steel, Molded Rubber Clutch PistonsNew "Deep" Bottom Pan and FiltersNew Dipstick StopBind In MI, 2nd Gear Start, Bind on 2-3 ShiftP/N Switch Connector Cannot Be RemovedForward Sprag, "SKF" Versus Borg-WarnerNew Sun Gear and Thrust BearingSeven Clutch 3-4 Clutch Pack for 2001Five Pinion Carriers, Both Front and RearNew Design Valve Body Casting for 2001Trouble Code P1870 / P0894 and How to FixInput Speed Sensor AddedPump and Input Shaft InterchangeNew Oil Pump to Case Seal for the 2004 Model YearChanges for the 2009 Model YearTPD Model Changes for the 2004 Model YearAddition Servo Added for the 4L70FNumber 5 Checkball EliminatedInput Carrier Change Publisher: ATSG (Automatic Transmission Service Group)Softcover: 168 PagesDimensions: 8.5 x 11.0 x 0.4
Price: 43.95 USD
Location: Midland, Michigan
End Time: 2023-12-21T19:30:37.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Buyer
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Non-Domestic Product: No
Type: Automatic Transmission
Make: General Motors
Country/Region of Manufacture: United States
Publisher:: Automatic Transmission Service Group (ATSG)
Modified Item: No
