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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 06-16-2005, 03:47 AM   #11
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Request the improved stove pipe. Make sure the valve body has all the Sonnax upgrades and components:

Below is a list of all the Sonnax parts and components for the 4T60E; they are as follows:
  • 4662
    Pump Vane, Torrington® Manufacturer, Replacement part.
    75410-10
    Shim, Differential Carrier To Case, Reduces selective OEM shim inventory; improves planetary life.
    75884B-01K
    Final Drive Sungear, 3.33 ratio, 30-Tooth.
    75890-30
    Washer, Differential, Side Gear, Allows differential to be serviced when side gear thrust washers wear out.
    8041
    Channel Plate Sleeve, Replacement part.
    8368
    Input Carrier Lube Dam, Replacement part.
    84450
    4th Clutch Hub Bearing, Worn out bearing.
    84532-01K
    Differential Lube Tube Retainer, Prevents lube tube from coming out.
    84573-01K
    Oversized Accumulator Pins, Allows re-use of original, worn piston.
    84573-02K
    Oversized Accumulator Pin & Reamer Kit, Includes 10 accumulator pins and reamer.
    84733-10
    Input Clutch Hub Shim, Corrects endplay, extends bearing & bushing life.
    84733-20
    Input Clutch Hub Shim, Improves seal life by reducing drum travel, adjusts for component wear.
    84754-01K
    TCC Regulator & Isolator Valve Kit, Reduces code 740, converter shudder.
    84754-08K
    TCC Regulator & Isolator Valve, Sleeve for regulator valve is designed to slip into reamed valve body bore.
    84754-12K
    Modulated Line Boost Valve Kit (Low Ratio), Improves line rise.
    84754-14K
    Reverse Boost Valve Kit (Low Ratio), Reduces soft shifts.
    84754-16K
    TCC Apply Valve, Oversized with Teflon® Seal, Reduces falling out of lock up and no fourth conditions, codes 740 & 1870.
    84754-17K
    Modulated Line Boost Valve Kit (High Ratio), Updated valve spool stability.
    84754-19K
    Reverse Boost Valve Kit (High Ratio), Reduces reverse delay or shudder.
    84754-23K
    1-2 Shift Valve, Reduces 1-2 shuttle shift.
    84754-24K
    Reverse & Modulated Line Boost Valve Kit (Low Ratio), Reduces 2nd and 3rd clutch distress.
    84754-25K
    Reverse & Modulated Line Boost Valve Kit (High Ratio), Salvages valve body cores.
    84754-36K
    2-3 Shift Valve, Anodized, Reduces erratic or temperature sensitive shifts.
    84754-37K
    3-2 Downshift Valve, Anodized, Reduces erratic, or temperature sensitive shifts.
    84754-38K
    3-4 Shift Valve, Anodized, Reduces erratic or temperature sensitive shifts.
    84754-39K
    4-3 Downshift Valve, Anodized, Reduces erratic, or temperature sensitive shifts.
    84754-40K
    1-2 & Reverse Servo Boost Valve, Oversized, Reduces delayed engagement and flare 1-2 shift.
    84754-97K
    TCC Apply Valve Kit, Aluminum, Oversized, Reduces 1870, converter shudder, overheat, and codes 39, 740 & 1870.
    84754-98K
    TCC Apply Valve Kit OEM Aluminum, Standard, Reduces 1870, converter shudder, overheat, and codes 39, 740 & 1870.
    84754-DJ2
    Reamer Guide for -’97 & Up TCC Apply Valve Kits, Required for use with 84754-97K.
    84754-RM
    Reamer Tool for TCC Reg. Valve Kit, Required for use with 84754-08K.
    84754-TL
    Reamer & Guide Kit for TCC Apply Valve Kits, Required for use with 84754-16K & 84754-97K Kits.
    84754-TL2
    Reamer Tool Kit, Includes Four Reamers, and Drill Jig, Required for use with 84754-40K.
    84791-01K
    1-2 Servo Sleeve Kit, Salvages worn or scored servo bore & improves 2-3, 3-2 shift control.
    84860A
    4th Clutch Hub, Early, Replaces OEM.
    84860B
    4th Clutch Hub, Late, Replaces OEM.
    84874
    Oil Pump Drive Shaft, Replacement part.
    84881
    Pump Slide Pivot Pin, Solid Version, Replacement part.
    84881A
    Pump Slide Pivot Pin, Grooved Version, Low, or high line pressure.
    84946A
    Reaction Shell, Stove Pipe, Replacement part.
    84995-01
    Side Cover Repair Plate, Eliminates oil leakage; easy side cover installation.
    GM-B-2
    Bushing, Stator Support, Precision, Replacement part.
    K84956-SP
    Spring, Accordion, Heavy Duty, Prevents 1-2 roller clutch failure for 1-2 roller clutch.
    SBK-G11
    Torrington Bearing Kit, Replacement bearing kit.
    84945-01K
    Input Sun Gear
    SC-4T60E
    The Sure Cure® Transmission Reconditioning Kit (Up to ‘96), Parts in one box to cure common root-cause problems.
    SC-4T60E-1
    The Sure Cure® Transmission Reconditioning Kit (‘97 & Later), Parts in one box to cure common root-cause problems.


Hope this list helps. You can go to the Sonnax website and check out these part numbers for pictures and descriptions. too.

www.sonnax.com

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Old 06-16-2005, 04:44 AM   #12
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Isnt this problem on the list of techincal bulletins for the 4T60-E where the transaxle slips into a neutral state while at speed. This was the demise of my cutlass, I junked it because several other things where wrong with it including it was slow!!!
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Old 06-16-2005, 05:03 AM   #13
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It is not the same. When the Stove Pipe fails (Reverse reactor Drum), the trans stays on low gear, will not shift into high gear and will slip. Also, reverse will try to engage and will slip constantly.
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Old 06-16-2005, 10:35 AM   #14
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Should my transmission mechanic honnor my request for sonnax parts? or are those the default ones he will use? Should i buy the parts and have him install them? Should i look for a new mechanic if he doesn't wanna install my parts?
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Old 06-16-2005, 11:28 AM   #15
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It depends a lot on the shop. I asked to have the Sonnax upgrades installed since they solve a lot of the headaches that are inherent with this transaxle. The shop I used is also a trans parts warehouse for all the trans shops in the area and they have the valve bodies with all the Sonnax upgrades already installed since some the valves and spools require reaming of paasages in the valave body. The list shown applies to the different year * and you do not need everything shown. Many of the items are also packaged as a kit as shown in the last two parts numbers in the list.

When I had my trans rebuilt, I called around and spoke to each shop. I also checked their history on-line with the Better Business Bureau; you will be surprised on the reputation of many shops!!!

My beleif is that any reputable shop, will do al the updates from Sonnax.
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Old 06-16-2005, 01:26 PM   #16
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ok well all it coems donw to for me is if he doesn;t use sonnax parts and uses some other aftermarket parts will it last and do you think it would be good enough? i mean if it lasts 5 years thats about the life of the car. it already has 160k on it. yeah i wanna get the best stuff but i am also tight on budget
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Old 06-16-2005, 01:32 PM   #17
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It is a matter of choice. I almost purchased a complete trans from IPT, however, I spoke to a friend that builds racing transmissions that is very familiar with the 4T60E. After a lengthy discussion, I choose to spend the extra money with a local shop that does use all the Sonnax parts and does all the updates. The decision was made since I plan to do a lot of more improvements such as a smaller pulley, exhaust system, cylinder heads and other mods. I want a trans that a least might be able to take a bit more punishment and not grenade on me.
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Old 06-16-2005, 07:02 PM   #18
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oh ok thanks for the info
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Old 06-16-2005, 07:26 PM   #19
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Quote:
Originally Posted by ssei1995
Request the improved stove pipe. Make sure the valve body has all the Sonnax upgrades and components:

Below is a list of all the Sonnax parts and components for the 4T60E; they are as follows:
  • 4662
    Pump Vane, Torrington® Manufacturer, Replacement part.
    75410-10
    Shim, Differential Carrier To Case, Reduces selective OEM shim inventory; improves planetary life.
    75884B-01K
    Final Drive Sungear, 3.33 ratio, 30-Tooth.
    75890-30
    Washer, Differential, Side Gear, Allows differential to be serviced when side gear thrust washers wear out.
    8041
    Channel Plate Sleeve, Replacement part.
    8368
    Input Carrier Lube Dam, Replacement part.
    84450
    4th Clutch Hub Bearing, Worn out bearing.
    84532-01K
    Differential Lube Tube Retainer, Prevents lube tube from coming out.
    84573-01K
    Oversized Accumulator Pins, Allows re-use of original, worn piston.
    84573-02K
    Oversized Accumulator Pin & Reamer Kit, Includes 10 accumulator pins and reamer.
    84733-10
    Input Clutch Hub Shim, Corrects endplay, extends bearing & bushing life.
    84733-20
    Input Clutch Hub Shim, Improves seal life by reducing drum travel, adjusts for component wear.
    84754-01K
    TCC Regulator & Isolator Valve Kit, Reduces code 740, converter shudder.
    84754-08K
    TCC Regulator & Isolator Valve, Sleeve for regulator valve is designed to slip into reamed valve body bore.
    84754-12K
    Modulated Line Boost Valve Kit (Low Ratio), Improves line rise.
    84754-14K
    Reverse Boost Valve Kit (Low Ratio), Reduces soft shifts.
    84754-16K
    TCC Apply Valve, Oversized with Teflon® Seal, Reduces falling out of lock up and no fourth conditions, codes 740 & 1870.
    84754-17K
    Modulated Line Boost Valve Kit (High Ratio), Updated valve spool stability.
    84754-19K
    Reverse Boost Valve Kit (High Ratio), Reduces reverse delay or shudder.
    84754-23K
    1-2 Shift Valve, Reduces 1-2 shuttle shift.
    84754-24K
    Reverse & Modulated Line Boost Valve Kit (Low Ratio), Reduces 2nd and 3rd clutch distress.
    84754-25K
    Reverse & Modulated Line Boost Valve Kit (High Ratio), Salvages valve body cores.
    84754-36K
    2-3 Shift Valve, Anodized, Reduces erratic or temperature sensitive shifts.
    84754-37K
    3-2 Downshift Valve, Anodized, Reduces erratic, or temperature sensitive shifts.
    84754-38K
    3-4 Shift Valve, Anodized, Reduces erratic or temperature sensitive shifts.
    84754-39K
    4-3 Downshift Valve, Anodized, Reduces erratic, or temperature sensitive shifts.
    84754-40K
    1-2 & Reverse Servo Boost Valve, Oversized, Reduces delayed engagement and flare 1-2 shift.
    84754-97K
    TCC Apply Valve Kit, Aluminum, Oversized, Reduces 1870, converter shudder, overheat, and codes 39, 740 & 1870.
    84754-98K
    TCC Apply Valve Kit OEM Aluminum, Standard, Reduces 1870, converter shudder, overheat, and codes 39, 740 & 1870.
    84754-DJ2
    Reamer Guide for -’97 & Up TCC Apply Valve Kits, Required for use with 84754-97K.
    84754-RM
    Reamer Tool for TCC Reg. Valve Kit, Required for use with 84754-08K.
    84754-TL
    Reamer & Guide Kit for TCC Apply Valve Kits, Required for use with 84754-16K & 84754-97K Kits.
    84754-TL2
    Reamer Tool Kit, Includes Four Reamers, and Drill Jig, Required for use with 84754-40K.
    84791-01K
    1-2 Servo Sleeve Kit, Salvages worn or scored servo bore & improves 2-3, 3-2 shift control.
    84860A
    4th Clutch Hub, Early, Replaces OEM.
    84860B
    4th Clutch Hub, Late, Replaces OEM.
    84874
    Oil Pump Drive Shaft, Replacement part.
    84881
    Pump Slide Pivot Pin, Solid Version, Replacement part.
    84881A
    Pump Slide Pivot Pin, Grooved Version, Low, or high line pressure.
    84946A
    Reaction Shell, Stove Pipe, Replacement part.
    84995-01
    Side Cover Repair Plate, Eliminates oil leakage; easy side cover installation.
    GM-B-2
    Bushing, Stator Support, Precision, Replacement part.
    K84956-SP
    Spring, Accordion, Heavy Duty, Prevents 1-2 roller clutch failure for 1-2 roller clutch.
    SBK-G11
    Torrington Bearing Kit, Replacement bearing kit.
    84945-01K
    Input Sun Gear
    SC-4T60E
    The Sure Cure® Transmission Reconditioning Kit (Up to ‘96), Parts in one box to cure common root-cause problems.
    SC-4T60E-1
    The Sure Cure® Transmission Reconditioning Kit (‘97 & Later), Parts in one box to cure common root-cause problems.


Hope this list helps. You can go to the Sonnax website and check out these part numbers for pictures and descriptions. too.

www.sonnax.com

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