CALIBRATION CHANGE THM 2004R 4TH GEAR SHIFT. Buick Electra/Park Avenue 1981

For 1990-2009 cars

# CALIBRATION CHANGE THM 2004R 4TH GEAR SHIFT

THE FOLLOWING CHANGES HAVE OCCURRED ON THE THM 200-4R TRANSMISSION: 1.ALL MODELS, EXCEPT THE CU, WERE BUILT WITH A NEW DESIGN (RECALIBRATED) VALVE BODY. 2.THE FOURTH CLUTCH PLATES WERE CHANGED FROM A GROOVED SURFACE TO A FLAT SURFACE ON ALL MODELS. 3.THE ASSEMBLY SEQUENCE OF THE 3-4 ACCUMULATOR PISTON WAS CHANGED. THIS CALIBRATION CHANGE WILL ALTER THE FEEL OF THE 3-4 SHIFT. * SEE BULLETIN FOR INFO AND ILLUSTRATIONS *

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