Superior Brand 4L30E Shift Correction Kit
Made By Superior Transmission Parts

Fits All Vehicles with the 4L30E Transmission 1990-On

Includes everything in photo 

This kit was carefully design to eliminate the common problems occurring with these models.


Includes Detailed Instructions

Transmission does need to be out of the vehicle.


This valve body kit corrects these problems:   

Bell Housing Gasket Blow Out 

Repairs Case Leakage in Servo Bores

Weak Shifts

Lock-Up Chatter

Overall Better Lube Through Unit

Premature Clutch Friction and Band Failure    

Improves overall performance

This is Directly Attacks the symptoms many high mileage units demonstrate.

With the spring upgrades this kit will firm up the shifts , and feel like new again.

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Save a bundle here over the cost from a dealership.

                                                                         

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