Engine Kits

ATSG 74400H 1987-93 GM THM 4L60 (700-R4) Transmission Manual
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ATSG 74400H 1987-93 GM THM 4L60 (700-R4) Transmission Manual

Part #: 74400H
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This booklet contains 120 pages of updated information about the 700R4/4L60 transmissions.

Introduction to the 700R4 (4L60) (Updated Handbook), this booklet was updated January, 2004.

For step by step instructions on rebuiding your transmission you will need the BLUE COVER Manual. (74400a for 1987 thru 1993 and 74400 for 1982 thru 1986). 
This manual has updated information to add to the rebuild information in the Blue Cover Manual.

Since the introduction of the 700R4 transmission, there has been many engineering design changes.  These changes have affected nearly every part used in the 700-R4.  This "Updated Handbook" will explain each change, the reason for the change, the parts that are affected by the change and any parts interchangeability concerns created by the change.  This transmission was last produced in 1993 and this manual will cover all changes up through and including 1993 changes.