January 29, 2020
Bushwhacked! Keys to Avoiding Preventable Bushing Problems
Brian Wing
Symptoms:
- Premature wear & bushing failure
- Code P0741
- TCC apply & release concerns
- Clutch failure
- Harsh shifts
- Gear ratio & solenoid codes
Cause:
Premature wear due to sub-optimal OE bushing material allows fluid loss and misalignment that can result in harsh shifting and clutch failure.Correction:
Install improved Sonnax bushing kit to restore critical clearances and resist untimely wear.Warning:
Use of an arbor press is required for correct installation. Do not use a hydraulic press or a bushing driver/hammer combination to install, as doing so may distort the bushing and cause fitment issues.
6L80, 6L90
Bushing Kit
Part No. 104030A-01K
Find a Distributor
OE bushings in GM 6L80 and 6L90 transmissions have a tendency to wear out prematurely due to sub-optimal material composition. This wear can lead to bushing failure, harsh shifts, burnt clutches and gear ratio or solenoid codes. Sonnax bushing kit 104030A-01K restores worry-free operation.
- Upgraded material composition outperforms OE bushings
- Superior wear characteristics eliminate premature deterioration
For GM 6L45 and 6L50, use 104030-01K.
- 2-6/3-5-R Hub Rear Bushing Fits 1.465" shaft journal dia.
- Stator Support Bushing Kit Fits 1.115" & 1.476" shaft journal dia.
- 2-6/3-5-R Hub Front Bushing
- 1-2-3-4/3-5-R Drum Bushing
- Case Bushing
- 4-5-6 Clutch Drum Bushing
- Front Center Support Bushing Fits 2.018" housing bore dia.
- Rear Center Support Bushing Fits 1.890" shaft journal dia.
- Output Shaft Bushing Fits 1.429" shaft journal dia.
- Pump Bushing PTFE Impregnated
- Bushing Style: Precision
- Material: Steel-backed alloy
Related Sonnax Parts
Required
Recommended
6L45, 6L50, 6L80, 6L90
1-2-3-4/3-5-R Drum Bushing 104030-03
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 2.346"
- Shaft Dia.: 2.184"
- Width: 0.532"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L45, 6L50, 6L80, 6L90
2-6/3-5-R Hub Front Bushing 104030-02
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 1.600"
- Shaft Dia.: 1.465"
- Width: 0.506"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L80, 6L90
2-6/3-5-R Hub Rear Bushing 104030A-01
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 1.590"
- Shaft Dia.: 1.465"
- Width: 0.506"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L45, 6L50, 6L80, 6L90
4-5-6 Clutch Drum Bushing 104030-05
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 0.819"
- Shaft Dia.: 0.685"
- Width: 0.520"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L80, 6L90
Case Bushing 104030A-04
- Bushing Style: Precision
- Material: PTFE-Impregnated Bimetal
- Housing Bore: 2.199"
- Shaft Dia.: 2.062"
- Width: 0.591"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L50, 6L80, 6L90
Front Center Support Bushing 104030-06
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 2.018"
- Shaft Dia.: 1.890"
- Width: 0.413"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L80, 6L90
Output Shaft Bushing 104030A-08
- Bushing Style: Precision
- Material: Steel-backed alloy
- Housing Bore: 1.562"
- Shaft Dia.: 1.429"
- Width: 0.512"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L45, 6L50, 6L80, 6L90
Pump Bushing 104034A
Not for use in 6L45 BMW models, which have a bearing in that position.
- Bushing Style: Precision
- Material: PTFE-Impregnated Bimetal
- Housing Bore: 1.994"
- Shaft Dia.: 1.834"
- Width: 0.782"
-
Helps cure:
- Premature wear & bushing failure
- Excess converter hub-to-bushing clearance
- Pump noise
Required
Recommended
6L45, 6L50
Rear Center Support Bushing 104030-07
- Bushing Style: Precision
- Bearing Style: Steel-backed alloy
- Housing Bore: 1.888"
- Shaft Dia.: 1.752"
- Width: 0.433"
-
Helps cure:
- Premature wear & bushing failure
Required
Recommended
6L80, 6L90
Stator Support Bushing Kit 104036AK
- Bushing Style: Precision
- Material: Steel-backed bronze
-
Helps cure:
- Premature wear & bushing failure
- Code P0741
- TCC apply & release concerns