I HAVE A 1989 FULL SIZE CHEVY BLAZER HAD 4 SPEED AUTOMATIC TRANSMISSION (R-7) REPLACED WITH 3 SPEED AUTOMATIC , I WAS DRIVING IN FIELD HAD TROUBLE GOING OVER DITCH WAS BACKING UP AND REVERSE WENT OUT REBUILT THE TRANSMISSION WITH ALL NEW CLUTCHES AND PLATES NOW HAVE REVERSE BUT NO FOWARD IN AUTOMATIC, BUT WILL SHIFT MANUALLY TO 1,2,3

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1989 Chevrolet BLAZER 5.9

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