In Jeep Wrangler YJ 1987-1995: Performance Modifications, veteran author Don Alexander covers the 4.0 engine, transmissions (automatic and manual), transfer cases, axles, differentials, and driveshafts, steering boxes, brake upgrades, shocks, springs and lift kits, chassis strengthening, and interior upgrades.
Whether you want to do some simple upgrades, such as a lift and tire combination, or want to go all out with a rock crawler-style suspension and an engine swap, this book will guide you through the process.TABLE OF CONTENTS:
About the Author
Acknowledgments
Chapter 1: Jeep Wrangler YJ
- Jeep Wrangler YJ History
- Suspension and Axles
- Trim Levels
- YJ Purchasing Considerations
Chapter 2: Tires and Wheels
- Stock Replacement Tires
- Off-Road Tires
- Tire Size, Diameters, and Ground Clearance
- Tire Cutting, Slashing, and Ply Ratings
- Wheels
- Wheel Size
- Wheel and Tire Balancing
- Tire Rotation
- Choosing the Right Tires and Wheels
- Wheel Spacers and Adapters
- Wheel and Tire Care and Maintenance
Chapter 3: Lifts, Suspension, and Steering
- Lifting a Jeep Wrangler YJ
- Coil Springs Versus Leaf Springs
- Articulation
- Suspension Control
- Control Arm Mounting Brackets
- Spring and Control Arm Joints
- Track Bars
- Shock Absorbers
- Types of Shocks
- Hydraulic Bump Stops
- Steering System
- Steering Knuckles, Unit Bearings, and Ball Joints
- Steering Hydraulics
- Suspension and Steering Alignment
Chapter 4: Brake Upgrades
- Brake System Basics
- The Need for More Braking Performance
- Brake Rotors
- Brake Calipers
- Disc Brake Conversion Kits for Rear Drum Brakes
- Brake Master Cylinders and Power Brake Boosters
- Brake Drums and Shoes
- Brake Pads
- Brake Flex Lines
- Brake Fluid
Chapter 5: Bumpers, Armor, and Protection
- Skid Plates
- Aftermarket Skid Plate Armor
- Skid Plate Protection
- Rock Sliders
- Body Armor
- Half Doors and Tube Trail Doors
- Fenders
- Front Bumpers
- Rear Bumpers
- Roll Cage
Chapter 6: Transmissions, Drivelines, Axles, Housings, Driveshafts, and Lockers
- Stock Jeep Wrangler YJ Axle Assemblies
- Axle Gearing
- Stock Wrangler YJ Transmissions
- Stock Wrangler YJ Transfer Cases
- Slip Yoke Eliminator
- Gear Ratios and Crawl Ratios
- Axle Swaps
- Ring and Pinion Gear Upgrades
- Central Axle Disconnect Front Axle
- Axle Upgrades
- Front Axle Shafts
- Rear Axle Shafts
- Splines
- Axle Housing Reinforcements
- Aftermarket Complete Axle Assemblies
- Axle Lockers
- U-joints, Yokes, and CV Joints
- Pinion Angle
- Ring and Pinion Break-in Procedure
Chapter 7: Styling and Storage Upgrades
- Aftermarket Tops
- Sun Shades
- Tube Doors
- Seat Upgrades
- Steering Wheel
- Mirrors
- Fluid Storage
- Metal Storage Boxes
- Interior Storage
- Roof Racks
Chapter 8: Electrical Upgrades and Lights
- Battery Upgrades
- Dual Battery Systems
- Alternators
- Auxiliary Lighting
Chapter 9: Engine Upgrades and Cooling System
- Cold Air Intakes
- Exhaust Systems
- Ignition Upgrades
- Heavy-Duty Clutch Kits
- Forced Induction
- Cooling System
Chapter 10: Popular Engine Swaps
- Engine Weights
- GM LS
- Small-Block Ford
- Cummins 2.8 Turbodiesel Crate Engine
Chapter 11: Winches, Vehicle Recovery Gear, and Trail Tools
- Winches
- Steel Versus Synthetic Winch Line
- Winch Controllers
- Roller Fairlead Versus Hawse Fairlead
- Winch Accessories
- Hi-Lift Jack
- Straps
- D-Ring Shackles
- Ground Anchor for Winching
- Extraction Boards, Sand Ladders, and Bridging Ladders
- Trail Tools and Spare Parts
- Tire Repair Kit
- Simple Tools and Spare Parts
Chapter 12: All J Products/Jeep 4x4 School Street-Legal YJ Rock Crawler
Source Guide
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