4t80e

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  1. 4t80e Swap
  2. 4t80e Tcc Solenoid Replacement
  3. 4t80e Oil Capacity Chart
  4. 4t80e Seals
  5. 4t80e Transaxle
SKU #NAME
EZ-LAP-HoneEZ-LAP-Hone - EZ- Lap Diamond Hone
72754-01K72754-01K - 4T80-E SONNAX VALVE ASSY, BOOST
72854-01K72854-01K - 4T80-E SONNAX VALVE KIT, AFL W/SPRINGS
72854-03K72854-03K - 4T80-E SONNAX VALVE KIT, TCC REGULATOR
72854-TL72854-TL - 4T80-E SONNAX TOOL KIT F/72854-01K, AFL
72871-0172871-01 - 4T80-E SONNAX PISTON, 2-3 ACCUMULATOR
72872-0172872-01 - 4T80-E SONNAX PISTON, 3-4 ACCUMULATOR

Bands

SKU #NAME
94020A94020A - Band, 4T80E Overdrive (Front, Flex) 1993-Up
94024A94024A - Band, 4T80E Low/Reverse (Rear, Double Wrap) 1993-Up

Electrical

The 4T80E modulator has a propensity to crack causing fluids to get sucked up into the vacuum line. The pan gasket, torque converter and seals have all been known to leak as a transmission begins to age. Transmission Model Number 4T80E Applications, Specifications, Dimensions, Ratios. Newest April 18, 2021 This 1964 Buick Riviera is a Stealth Custom Rides & Roadkillers.

SKU #NAME
74418E74418E - 4L60E, 4T65E, 4T40E, 4T80E, and Allison 3-2 Downshift Solenoid TCC PWM Gray Plug
34435A34435A -4L60E 4L30E 4L80E 4T80E Transmission GM Chevy EPC Pressure Control Solenoid

Gaskets | O-rings | Lip Seals | Bonded Pistons | Sealing Rings

Stabilizer
SKU #NAME
94325AA94325AA - Gasket, 4T80E Channel Plate to Support (Inner)(Bonded) 1995-Up
94301A94301A - Gasket, 4T80E Side Pan (Molded Rubber) 1993-Up
94320A94320A - Gasket, 4T80E Upper Valve Body Plate to Channel Plate 1993-Up
94321A94321A - Gasket, 4T80E Upper Valve Body to Spacer Plate 1993-Up

Filters | Screens

4t80e
SKU #NAME
94013A94013A - Filter, 4T80E Left Scavenger 1993-Up
94013B94013B - Filter, 4T80E Right Scavenger 1993-Up

Sprags

SKU #NAME
94652A94652A - Sprag, 4T80E 2nd (16 Lug)(W/Side Washers) 1993-Up

Bushings

SKU #NAME
94030A94030A - Bushing Kit, 4T80E 1993-Up

Metal Clad Seals

SKU #NAME
44487B44487B - GM Linkage Grommet, (Round, Plastic)
94070A94070A - Seal, 4T80E Converter Reactor 1993-Up
94076A94076A - Seal, 4T80E Axle (Case Cover, Drivers Side) 1993-Up
94077A94077A - Seal, 4T80E Axle (Extension Housing, Passengers Side) 1993-Up

Friction Plates

SKU #NAME
94108A94108A - Friction, 4T80E Forward Clutch .081” (53 Teeth) 1993-Up

Pressure Plates

SKU #NAME
94144A94144A - Apply Plate, 4T80E 2nd Clutch .177” (5 Teeth) 1993-Up
94145A94145A - Pressure Plate, 4T80E 2nd Clutch .265” (5 Teeth) 1993-Up
94146A94146A - Apply Plate, 4T80E 3rd Clutch .141” (22 Teeth) 1993-Up

Misc

SKU #NAME
44487B44487B - GM Linkage Grommet, (Round, Plastic)
4449044490 - GM Plastic, Vent Tube
94379A94379A - Boot, 4T80E Main Filter (.295” Tall) 1993-Up
Transmission
4T80-E
A Hydra-Matic 4T80 transmission at the Ypsilanti Automotive Heritage Museum
Overview
ManufacturerGeneral Motors
Production1993–2011
Body and chassis
Class4-speed transverseautomatic transmission
Chronology
PredecessorTurbo-Hydramatic 125
Successor6T70

The 4T80E is a series of automatic transmissions from General Motors. Designed for transverse engine configurations, the series includes 4 forward gears. The 4Txx family is an evolution of the original Turbo-Hydramatic 125 transverse automatic introduced in the 1980 model year 'X' body.

4t80e Swap

The 4T80-E transmission is electronically controlled and features an automatic overdrivetransaxle with an electronically controlled torque converter clutch. The 4T80 originally used a viscous clutch, but this was changed in 2005.

The 4T80 is built at Willow Run Transmission in Ypsilanti, Michigan.

4T80-E[edit]

The 'MH1' 4T80-E is able to handle vehicles up to 8000 lb (3628.74 kg) GVWR. The final drive ratio is 3.11:1, 3.48:1, or 3.71:1. The 4T80 uses a viscoustorque converter clutch, which was replaced with EC3 (electronically controlled converter clutch) in 2004.

The 4T80-E is a hydramatic transmission and was developed for use with V8 front-wheel-drive cars, specifically for the Cadillac Northstar engine. It was designed with extreme power handling capabilities at the time. The 4T80-E debuted in the Cadillac Allante in 1993 along with the Northstar Double Overhead Camshaft (DOHC) V8. It reportedly cost 80% more than a similar GM 4T60 transmission and weighed 60 lb (27 kg) more.

4t80e Tcc Solenoid Replacement

This transaxle has been used in many of GM's front drive large sedans. The Cadillac Division had exclusive usage of the 4T80-E until the 1995 Oldsmobile Aurora debuted. The Aurora had the 4.0L version of the Northstar V8 coupled to a 4T80-E. It wasn't until 2004 that Pontiac got usage of this transaxle in the Bonneville GXP which employed a 275 horsepower version of the Northstar 4.6L V8.

The 4T80-E was last used in 2011 on the Cadillac DTS and the Buick Lucerne (when equipped with the 4.6L Northstar).

Gear ratios:

1234R
2.961.6261.000.6812.13

4t80e Oil Capacity Chart

Applications:

4t80e
  • 3.11:1
    • 1994–2005 Cadillac Deville
    • 1993-2002 Cadillac Eldorado
    • 1993-2004 Cadillac Seville
    • 2006 Cadillac DTS
  • 3.48:1
    • 1995-1999 Oldsmobile Aurora
  • 3.71:1
    • 1996–2005 Cadillac Deville Concours/DTS
    • 1993-2002 Cadillac Eldorado ETC
    • 1993-2004 Cadillac Seville STS
    • 1995-1999 Oldsmobile Aurora
    • 2004–2005 Pontiac Bonneville GXP
    • 2006-2011 Buick Lucerne V8
    • 2001-2003 Oldsmobile Aurora V8

4t80e Seals

References[edit]

  • 'Technical Highlights'. Car and Driver (October 1993): 115.
  • Joel D. Pietrangelo. 'Northstar is heart of Allante re-do for '93 - V-8 engine, General Motors' Cadillac Motor Car Div.'s new model roadster'. Ward's Auto World (February 1992).

See also[edit]

4t80e Transaxle

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