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 2004
This booklet contains general description and overhaul procedures necessary to repair, overhaul or service the
new Ford Motor Co 5R55N transmission. The Ford 5R55N transmission was first introduced in the 2000 model
year, and is currently found in the Lincoln "LS" and Jaguar X200. We wish to thank Ford Motor Company for
the information and illustrations that have made this booklet possible.
The 5R55N transmission has 5 forward speeds, reverse and is fully electronic controlled. Internally, it looks
similar to the previous 5R55E unit, but very few minor components are actually the same. Following are the
internal components used in the new 5R55N transmission.
3 Planetary Compound Gear Sets: Overdrive, Forward and Rear.
3 Brake Bands: Overdrive, Intermediate and Low/Reverse.
4 Multi-Plate Clutch Packs: Coast, Forward, Direct and Intermediate.
3 One-Way Clutches: Overdrive, Intermediate and Low.
Electronic Controlled Shifts, Torque Converter Clutch and Pressure.
FIELD SERVICE CONSULTANT
AUTOMATIC TRANSMISSION SERVICE GROUP
18639 S.W. 107TH AVENUE
MIAMI, FLORIDA 33157