Tech Resources Transmission Video GM Diagnostics And Theory
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February 22, 2016
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Eliminate 3-4 Clutch Failure with the Smart-Tech® Input Housing

Presented by Sonnax

The flawed design of the 4L60/E OE input housing will always let you down with another burnt 3-4 clutch. When the weak backing plate flexes during clutch apply, heat builds up and the clutches cook. Stop the flex and you stop 3-4 clutch failure.

Watch this video to see the OE backing plate flex and how the Sonnax Smart-Tech® input housing eliminates this issue. It's the ONLY way to guarantee you're getting the most from your favorite clutches. 

 
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Related Units

4L70-E Transmission 4L60 Transmission 4L60-E Transmission 4L65-E Transmission


Related Parts

Required

Recommended

4L60, 4L60-E, 4L65-E, 4L70-E Apply Plate & Seal Service Kit 77733-06SVC

4L60, 4L60-E, 4L65-E, 4L70-E

Apply Plate & Seal Service Kit 77733-06SVC

Required

Recommended

4L60, 4L60-E, 4L65-E, 4L70-E Smart-Tech® Input Housing Kit 77733-06KA

4L60, 4L60-E, 4L65-E, 4L70-E

Smart-Tech® Input Housing Kit 77733-06KA

Does not include input shaft.

Required

Recommended

4L60-E, 4L65-E, 4L70-E Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-11KB

4L60-E, 4L65-E, 4L70-E

Smart-Tech® Input Housing Kit with Heavy Duty Input Shaft 77733-11KB

For units with 300mm converter, non-reluctor style shaft.

While Sonnax makes every effort to ensure the accuracy of technical articles at time of publication, we assume no liability for inaccuracies or for information which may become outdated or obsolete over time.

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