Muncie 4-speed Transmissions: How To Rebuild And Modify by Paul CangialosiMuncie 4-speed Transmissions: How To Rebuild And Modify by Paul Cangialosi

Muncie 4-speed Transmissions: How To Rebuild And Modify

byPaul Cangialosi

Paperback | October 21, 2014

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The Muncie 4-speeds (M20, M21, and M22) are some of the most popular manual transmissions ever made and continue to be incredibly popular. The Muncie was the top high-performance manual transmission General Motors offered in its muscle cars of the 1960s and early 1970s. It was installed in the Camaro, Chevelle, Buick GS, Pontiac GTO, Olds Cutlass, and many other classic cars. Many owners want to retain the original transmission in their classic cars to maintain their value.

Transmission expert and veteran author Paul Cangialosi has created an indispensable reference to Muncie 4-speeds that guides you through each crucial stage of the rebuild process. Comprehensive ID information is provided, so you can positively identify the cases, shafts, and related parts. It discusses available models, parts options, and gearbox cases. Most important, it shows how to completely disassemble the gearbox, identify wear and damage, select the best parts, and complete the rebuild. It also explains how to choose the ideal gear ratio for a particular application. Various high-performance and racing setups are also shown, including essential modifications, gun drilling the shafts, cutting down the gears to remove weight, and achieving race-specific clearances.

Muncie 4-speeds need rebuilding after many miles of service and extreme use. In addition, when a muscle car owner builds a high-performance engine that far exceeds stock horsepower, a stronger high-performance transmission must be built to accommodate this torque and horsepower increase. No other book goes into this much detail on the identification of the Muncie 4-speed, available parts, selection of gear ratios, and the rebuild process.

Paul Cangialosi is the owner, proprietor, and top wrench at Medatronics Corporation and 5speeds.com in Tequesta, Florida. He first started working on cars at the age of 12 and his automotive passions have burned bright ever since. He has pursued his passion for manual transmissions for nearly 30 years. Today, Cangialosi's businesses of...
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Title:Muncie 4-speed Transmissions: How To Rebuild And ModifyFormat:PaperbackDimensions:144 pages, 11 × 8.5 × 0.38 inPublished:October 21, 2014Publisher:CartechLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:1613251068

ISBN - 13:9781613251065

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Table of Contents

Acknowledgments 


Introduction 


What is a Workbench® Book? 


Chapter 1:

History and Evolution 
Happy Accidents Create the Muncie 
Muncie Design Changes 
Available Gear Ratios 


Chapter 2:

Muncie 4-Speed Identification 
Muncie RPO Codes 
Main Case Casting Numbers 
Serial Numbers 
Main Cases 
Service Cases and Transmissions 
Extension Housings and Sidecovers 
Midplate Castings 
Ratio Identification 
Hardware and Tags 


Chapter 3:

How Muncie 4-Speeds Work 
Forward Gears 
Reverse Gears 
Lack of Front Seal 
Design Features 
Diagnosing Common Problems 
Shifter Considerations 
Chapter 4: Inspection and Repair 
Cleaning  
External Case Components  
Gears, Synchros and Shafts 
Bearings and Bearing Surfaces 
Chapter 5: Rebuilding Your Muncie 
Muncie Rebuild Kit 
Workflow Process 


Chapter 6:

High-Performance Muncies 
Auto Gear Equipment 
High-Performance Gearsets 
Muncie Design Features 
Road Racing and Endurance Use 


Chapter 7:

Advance Adapters 4x4 Conversion Kit 
Mainshaft Assembly 
Maindrive Inspection 
Gearbox Assembly 


Chapter 8:

Parts Resources 
Group A: Mainshaft and Extension Housing 
Group B: Maindrive and Retainer 
Group C: Countershafts and Case 
Group D: Internal Shift Linkage 
Group E: Service Kits 


Appendix:

Original Muncie Patent 


Source Guide