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4L80E 4L85E TH400 HD Intermediate Clutch Outer Sprag Race by Sonnax

MSRP:

Now: $82.95

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4L80E 4T60 4T65E Planetary Thrust Bearing (Sonnax)

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Now: $12.95

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4L80E 4th Accumulator Repair Kit - Sonnax
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Sonnax

4L80E AFL Filter End Plug & O-Ring Kit

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Now: $7.50

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Sonnax

4L80E Boost Valve Kit (O-Ring Style Pumps)

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Now: $24.95

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Sonnax

4L80E Boost Valve Kit - Sonnax

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Now: $76.99

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Sonnax

4L80E End Plug (0.500'' Bore) 5-Pack
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Sonnax

4L80E HD Stator Suport Bushing (4-Pack)

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Now: $24.95

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4L80E Line Pressure Booster Kit by Sonnax

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Now: $34.95

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Sonnax

4L80E Manual Shift Shaft Kit (1995-UP)

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Now: $42.95

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Sonnax

4L80E Manual Valve - Sonnax
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Sonnax

4L80E Manual Valve Kit - Sonnax
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Sonnax

4L80E O-Ringed End Plug Kit (0.668'' TCC Valve Bore)
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Sonnax

4L80E O-Ringed End Plug Kit (OE Style) 5-Pack
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Sonnax

4L80E Output & Reaction Planetary Rebuild Kit (1999-UP)

MSRP:

Now: $69.95

Currently Out of Stock
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Sonnax

4L80E Overrun Clutch Valve Kit (1997-UP) Sonnax Smart-Tech®

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Now: $254.95

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Sonnax

4L80E Oversized Sealing Rings (Pack of 2)

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Now: $7.95

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4L80E Pump Pressure Regulator Valve by Sonnax

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Now: $89.95

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Sonnax

4L80E Reverse Checkball Sleeve (1995-UP) 4-Pack
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Sonnax

4L80E Stator Support Bushing Sonnax (1 Bushing)

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Now: $16.95

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Sonnax

4L80E 4L85E TH400 HD Intermediate Clutch Outer Sprag Race by Sonnax

4L80E 4L85E TH400 HD Intermediate Clutch Outer Sprag Race by Sonnax Part No. 34663HD-02 Improve GM 4L80-E, 4L85-E and TH400 transmission durability with Sonnax heavy duty intermediate clutch...

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Now: $82.95
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Sonnax

4L80E 4T60 4T65E Planetary Thrust Bearing (Sonnax)

34821-01 is a direct replacement for the planetary thrust bearing in listed units. This bearing is known to fail and destory the planet gears. REplace the bearing during a rebuild to...

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Now: $12.95
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Sonnax

4L80E 4th Accumulator Repair Kit - Sonnax

4L80-E, 4L85-E 4th Accumulator Repair KitPart No. 34805-01K Repeated reciprocation of the 4th accumulator pistons in GM 4L80-E and 4L85-E units causes wear at the piston/pin interface...

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4L80E AFL Filter End Plug & O-Ring Kit

4L80-E, 4L85-E AFL Filter End Plug & O-Ring KitPart No. 34994-17K GM 4L80-E and 4L85-E transmissions may have 2nd gear starts and no upshifts, which can be accompanied by trouble codes...

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Now: $7.50
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Sonnax

4L80E Boost Valve Kit (O-Ring Style Pumps)

Boost Valve KitPart No. 34200-01K O-Ring style. Kit can be retrofit to back to '89 units. See instructions for details. Common problems in vehicles with GM 4L80-E and 4L85-E transmissions are...

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Now: $24.95
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Sonnax

4L80E Boost Valve Kit - Sonnax

Common problems in vehicles with GM 4L80-E and 4L85-E transmissions include uncontrollable line rise (upward of 500 psi), high line pressure in Reverse, broken direct clutch drums and/or broken cases...

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Now: $76.99
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Sonnax

4L80E End Plug (0.500'' Bore) 5-Pack

Specs Dia.: 0.500" Sonnax Part Number: 34994-11 Symptoms: No converter apply 1-2, 2-3, 4-5 Flares

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4L80E HD Stator Suport Bushing (4-Pack)

GM 4L80-E and 4L85-E units may display no converter lockup or codes 68, 39, 1870 or P0741. Imbalance of torque converter clutch apply oil through the front stator support bushing contributes to this...

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Now: $24.95
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4L80E Line Pressure Booster Kit by Sonnax

4L80E 4L85E Transmission Line Pressure Booster Kit Sonnax Part Number: 4L80E-LB1 Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves...

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Now: $34.95
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4L80E Manual Shift Shaft Kit (1995-UP)

4L80-E, 4L85-E Manual Shift Shaft KitPart No. 38511-04K 1995 & later with external neutral safety swich Long style Zinc Plated Contents Shaft Flange Nuts (2)

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Now: $42.95
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4L80E Manual Valve - Sonnax

4L80-E, 4L85-E Manual ValvePart No. 34994-16 The OE manual valve in GM 4L80-E and 4L85-E transmissions is prone to bending due to its length and relatively narrow spools. Once bent, the...

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4L80E Manual Valve Kit - Sonnax

4L80-E, 4L85-E Manual Valve KitPart No. 34994-16K The OE manual valve in GM 4L80-E and 4L85-E transmissions is prone to bending due to its length and relatively narrow spools...

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Sonnax

4L80E O-Ringed End Plug Kit (0.668'' TCC Valve Bore)

4L80-E, 4L85-E O-Ringed End Plug KitPart No. 34994-14K Fits .668" dia. bores Symptoms: No converter apply 1-2, 2-3, 4-5 Flares Contents: End Plugs (5) O-Rings (5)

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Sonnax

4L80E O-Ringed End Plug Kit (OE Style) 5-Pack

4L80-E, 4L85-E O-Ringed End Plug Kit - PACK OF 5Part No. 34200-05K TCC & PR Valves OE end plugs are designed to prevent critical pressure loss by capping the bore, while also...

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4L80E Output & Reaction Planetary Rebuild Kit (1999-UP)

The output and reaction planetary pinion assemblies in '99-later 4L80-E transmissions frequently wear out and must be rebuilt or replaced. New replacement assemblies can be costly and the...

MSRP:

Now: $69.95
Currently Out of Stock
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Sonnax

4L80E Overrun Clutch Valve Kit (1997-UP) Sonnax Smart-Tech®

4L80-E, 4L85-E Smart-Tech® Overrun Clutch Valve KitPart No. 34200-40K Fits 1997-UP Units Insufficient holding power in the overdrive roller clutch is the underlying cause of chronic...

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Now: $254.95
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4L80E Oversized Sealing Rings (Pack of 2)

Pack of 2 GM 4L80-E and 4L85-E forward drums are often replaced due to wear of the sealing ring bore caused by contact with the input shaft. Contact between shaft and drum occurs because of...

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Now: $7.95
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Sonnax

4L80E Pump Pressure Regulator Valve by Sonnax

Part No: 34200-14K The OE pressure regulator valve design prevents adequate cooler flow at low RPM and high pressure/demand conditions, which can create overheat complaints. Additionally,...

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Now: $89.95
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4L80E Reverse Checkball Sleeve (1995-UP) 4-Pack

4L80-E, 4L85-E Reverse Checkball SleevePart No. 34200-38 Fits units '95-later. Package Quantity: 4 Vehicles with '95-later GM 4L80-E and 4L85-E transmissions commonly exhibit wear...

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4L80E Stator Support Bushing Sonnax (1 Bushing)

4L80-E, 4L85-E Stator Support BushingPart No. 34016-W (You get 1 Bushing) Package Quantity: 1 GM 4L80-E and 4L85-E units may display no converter lockup or codes 68, 39, 1870 or P0741...

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Now: $16.95
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