FIELD SERVICE CONSULTANT
No part of any ATSG publication may be reproduced, stored in any retrieval system or transmitted in any form or
by any means, including but not limited to electronic, mechanical, photocopying, recording or otherwise,
without written permission of Automatic Transmission Service Group. This includes all text illustrations,
tables and charts.
The information and part numbers contained in this booklet have
been carefully compiled from industry sources known for their
reliability, but ATSG does not guarantee its accuracy.
Copyright © ATSG 1997
The 5R55E transmission produced by Ford Motor Company, was introduced in the 1997 model year, and is the
first 5 speed automatic found in domestic vehicles. It is currently found in the 1997 Aerostar Van, 1997-2001
Ranger Trucks, both 2WD and 4WD, and 1997-2001 Explorer vehicles, equipped with the 4.0L engine. This
unit is very similar to the 4R44E, but has different computer strategy that energizes the overdrive band in first
gear, to create the added gear ratio. Refer to the application chart found on Page 7 for the new computer
strategy. Many of the parts between the 4R44E and 5R55E units may look the same, but are not all
interchangeable. Be very careful when selecting replacement parts, if it becomes necessary.
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 S.W. 107TH AVENUE
MIAMI, FLORIDA 33157