How To Rebuild And Modify Gm Turbo 400 Transmissions by Cliff RugglesHow To Rebuild And Modify Gm Turbo 400 Transmissions by Cliff Ruggles

How To Rebuild And Modify Gm Turbo 400 Transmissions

byCliff Ruggles

Paperback | June 29, 2011

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Over the last 50 years, literally millions of GM cars and trucks have been built with Turbo 400 automatic transmissions. While these transmissions are respected for their durability and versatility, there always comes a point where the old transmission shows signs of wear. At some point, even the best transmissions need to be rebuilt.

Respected automotive technical author Cliff Ruggles takes readers through the complex rebuild procedure of GMs most popular rear-wheel drive automatic transmission in this great new book. Enthusiasts have embraced the reliable GM Turbo Hydra-Matic 400 three-speed automatics for years, and the popularity of these transmissions is not slowing down. With his proven style, Ruggles walks through the step-by-step rebuild and performance upgrade procedures in a series of full-color photos for each of these models. Time saving tips are part of every buildup.

This is a welcome addition to your automotive library. Amateurs and professionals alike will appreciate the advice and guidance offered on every page. Even if you end up deciding to have a professional take care of your transmission repair and performance needs, this information is crucial to understanding how the power gets from the engine to the road.

Cliff Ruggles has more than 20 years' experiene in custom building transmissions. He owns his own business, Cliff's High Performance, which specializes in building high-performance engines, transmission, and carburetors. Cliff has built/ owned/ raced at least half a dozen cars over the years.
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Title:How To Rebuild And Modify Gm Turbo 400 TransmissionsFormat:PaperbackDimensions:144 pages, 11 × 8.5 × 0.38 inPublished:June 29, 2011Publisher:CartechLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:1934709204

ISBN - 13:9781934709207

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Table of Contents

Preface

 

 

What is a Workbench® Book?

 

 

Chapter 1: Tools and Equipment

Safety Equipment

Sockets and Wrenches

Snap Ring Pliers

Screwdrivers

Measuring Devices 

Spring Compressors

Case Holding Fixtures 

Work Surface

Pans for Small Parts

Cleaning Cases 

Bushing Removers and Installers

Heli-Coils and Bolt Extractors

Air Tools 

Punches, Chisels and Files 

Lip Seal Installation Tools

Friction Alignment Tool

Oil Pump Band

Alignment Studs

Slide Hammer

Special Tools 

 

 

Chapter 2: Transmission Fundamentals

Torque Converters

Transmission Oil Pump

Clutch Packs

Bands and Servos 

Accumulators

Planetary Gears 

Sprags and Roller Clutches 

Valve Body

 

Chapter 3: Transmission Removal

 

Chapter 4: TH400 Disassembly 

Remove External Components 

Remove Valve Body and Governor Filter

Remove Downshift Solenoid and Separator Plate 

Remove Front Band and Low Band Apply Servos

Remove Oil Pump, Manual Shaft and Speedometer Gear Housing

Remove Forward Drum Clutch, Direct Drum and Band 

Remove Clutch Pack, Output Shaft and Low Band

Final Disassembly

 

Chapter 5: TH400 Assembly 

Install New Case Bushing, Solenoid Connector and Parking Pawl

Disassemble Output Shaft and Lower Planetary Assembly

Reinstall Planetary Assembly 

Install Low Band and Output Assembly

Rebuild Center Support

Reinstall Center Support

Rebuild and Install Clutch Pack and Intermediate Band

Rebuild Direct Clutch Pack and Install Direct Drum

Rebuild Forward Drum

Rebuild and Install Oil Pump Assembly

Check Clutch Packs and Install Accumulator Piston 

Install Filter and Valve Body

Install Exterior Components

 

Chapter 6: TH400 Transbrake

Installation Procedure 

 

Chapter 7: Transmission Installation 

 

Troubleshooting Guide

 

Source Guide