Chrysler A999 – A904T Transmission Rebuild Manual – ATSG

Transmission operation requirements are different for each vehicle and engine combination and some internal parts will be different to provide for this. Therefore, when replacing parts, refer to the seven digit part number stamped on left side of the transmission oil pan flange.

All A-904T and A-999 transmissions are equipped with a wide-ratio planetary gear assembly. Low gear ratio is 2.74 to 1. The sun gear and front planetary gear set Is unique to the wide-ratio transmission. The rear planetary gear assembly remains the same as previous models….

CONTENTS

ELECTRIC LOCK-UP
CARRY OVER COMPONENTS
HYDRAULIC OPERATION
ONBOARD DIAGNOSTIC
PRESSURE TESTS
GENERAL DIAGNOSIS
MAINTENANCE & ADJUSTMENTS
VALVE BODY
TEAROOWN & ASSEMBLY
SPECIFICATIONS
TRANSMISSION UPDATE 1986


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