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Ford Differentials: How to Rebuild the 8.8 and 9 Inch
The Ford 8.8- and 9-inch must be rebuilt after extensive use and need a variety of different ratios for top performance and special applications. This Workbench book provides detailed step-by-step photos and information for rebuilding the differentials with the best equipment, installing the gear sets, and converting to Posi-Traction for a variety of applications. It describes how to disassemble the rear end, identify worn ring and pinion gears, other damage or wear, and shows step-by-step rebuilding of the differential. It also explains how to select the right differential hardware, bearings, seals, and other parts, as well as how to set ring and pinion backlash so that the rear end operates at peak efficiency.
Aftermarket 9-inch performance differentials from manufacturers including Currie, Moser and Strange are reviewed and you learn how to rebuild and set up these high-performance aftermarket differentials. In addition, this book provides a comprehensive identification chart to ensure readers properly identify the model and specifics of the 9-inch differential. Chapters include axle identification, inspection, and purchasing axles for rebuilding; differential tear down; ring and pinion gear removal; inspection and reassembly; drive axle choices; and more.n
Acknowledgments
Introduction
What is a Workbench® Book?
Chapter 1:
Axle History and Identification
8-Inch
9-Inch
8.8-Inch
Front Axle Applications
93½8-Inch
Part Numbers
Chapter 2:
Axle Removal
Safety Equipment
General Procedures
Brake System Removal
Leaf Spring Removal
Chapter 3:
8.8-Inch Axle Disassembly and Inspection
Optional Upgrades
Disassembly Preparation
Axle Housing Disassembly
Traction-Lok Differential Disassembly
Chapter 4:
8.8-inch Axle Assembly
Traction-Lok Differential Assembly
Axle Housing, Wheel End Bearing and Seal Assembly
Ring and Pinion Gear Set Assembly
Chapter 5:
9-Inch Axle Disassembly and Inspection
Physical Differences
Strength Differences
Axle Shaft Splines
Disassembly Procedure
Brake Drums and Axle Shaft Dissambly
Third Member and Pinion Cartridge Removal
Summary
Chapter 6:
9-Inch Axle Assembly
Open-Differential Assembly
Traction-Lok Assembly
Third-Member Assembly
Axle Housing Assembly
Chapter 7:
Ring and Pinion Assembly
Face-Hobbed Gears
Face-Milled Gears
Break–In Procedure
Gear Ratio Selection and Tooth Combinations
Chapter 8:
Performance 9-Inch Axle Installation
Vehicle Acquisition and Inspection
Drivetrain Upgrades
Transmission Installation
Spring Pocket Kit Installation
Wheel Tub Installation
Axle Ratio Selection
Summary
Appendix: 9-Inch Axle Identification Codes
Source Guide
The Ford 8.8- and 9-inch must be rebuilt after extensive use and need a variety of different ratios for top performance and special applications. This Workbench book provides detailed step-by-step photos and information for rebuilding the differentials with the best equipment, installing the gear sets, and converting to Posi-Traction for a variety of applications. It describes how to disassemble the rear end, identify worn ring and pinion gears, other damage or wear, and shows step-by-step rebuilding of the differential. It also explains how to select the right differential hardware, bearings, seals, and other parts, as well as how to set ring and pinion backlash so that the rear end operates at peak efficiency.
Aftermarket 9-inch performance differentials from manufacturers including Currie, Moser and Strange are reviewed and you learn how to rebuild and set up these high-performance aftermarket differentials. In addition, this book provides a comprehensive identification chart to ensure readers properly identify the model and specifics of the 9-inch differential. Chapters include axle identification, inspection, and purchasing axles for rebuilding; differential tear down; ring and pinion gear removal; inspection and reassembly; drive axle choices; and more.n
Acknowledgments
Introduction
What is a Workbench® Book?
Chapter 1:
Axle History and Identification
8-Inch
9-Inch
8.8-Inch
Front Axle Applications
93½8-Inch
Part Numbers
Chapter 2:
Axle Removal
Safety Equipment
General Procedures
Brake System Removal
Leaf Spring Removal
Chapter 3:
8.8-Inch Axle Disassembly and Inspection
Optional Upgrades
Disassembly Preparation
Axle Housing Disassembly
Traction-Lok Differential Disassembly
Chapter 4:
8.8-inch Axle Assembly
Traction-Lok Differential Assembly
Axle Housing, Wheel End Bearing and Seal Assembly
Ring and Pinion Gear Set Assembly
Chapter 5:
9-Inch Axle Disassembly and Inspection
Physical Differences
Strength Differences
Axle Shaft Splines
Disassembly Procedure
Brake Drums and Axle Shaft Dissambly
Third Member and Pinion Cartridge Removal
Summary
Chapter 6:
9-Inch Axle Assembly
Open-Differential Assembly
Traction-Lok Assembly
Third-Member Assembly
Axle Housing Assembly
Chapter 7:
Ring and Pinion Assembly
Face-Hobbed Gears
Face-Milled Gears
Break–In Procedure
Gear Ratio Selection and Tooth Combinations
Chapter 8:
Performance 9-Inch Axle Installation
Vehicle Acquisition and Inspection
Drivetrain Upgrades
Transmission Installation
Spring Pocket Kit Installation
Wheel Tub Installation
Axle Ratio Selection
Summary
Appendix: 9-Inch Axle Identification Codes
Source Guide
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