| Home » Quadratec Knowledge Center |
Quadratec Knowledge Center |
Safety & Recalls |
Product Recalls
Product Safety Recalls.
|
Flat Towing a Jeep® Wrangler
A short description of how to tow a Jeep behind a recreational vehicle.
|
Tools |
Torque Ratings for Grade 5 & Grade 8 Fasteners
A chart showing the standard torque ratings for common size fasteners
|
Tires & Wheels |
Tire Fitment Guide for Lifted Jeep Applications
A simple chart to see what size tire fits with what size lift.
|
Understanding Metric Tire Measurements
A chart to convert Metric tire measurements to Imperial while explaining what the numbers mean.
|
How to Read a Tire.
A brief summary of how to read the markings on the sidewall of your tire.
|
How to Maintain Your Tires
How to maintain your tires for better gas mileage and tire life.
|
Wheel Bolt Patterns & Typical Lug Nut Torque Specifications
Chart showing Lug bolt patterns with torque specifications and instructions for determining bolt patterns.
|
Radial and Bias Tire Construction Differences
An article discussing the differences in Radial and Bias-Ply tire construction.
|
Caster, Camber & Toe Explained.
Simple allignment terms explained.
|
Gear Ratio Guide for Larger Tires
A chart showing optimal gear ratios for lifted vehicles with larger tires to obtain the best power ratio.
|
Wheel Terminology
A list of terms used when discussing wheels.
|
Tire Safety Suggestions
Tire tips to help maintain tire life and safety by the Rubber Manufacturers Association.
|
Off-Road 101 on Tires by TeraFlex
An article about tires and how they function off-road by TeraFlex.
|
What's Inside a Radial Tire?
A dissection of a tire provided by the Rubber Manufacturers Association.
|
Mickey Thompson Tire and Rim Match Mounting Suggestions for Maximum Uniformity
A step by step guide to proper mounting of tires and rims for improved ride and handling characteristics.
|
Tire Terminology
An explanation for common tire terms
|
Spidertrax Wheel Spacers & Adaptors
An article reprinted from JRations magazine explaining how wheel spacers work.
|
Tire & Gear Ratio Calculations
Common calculations to help you figure out tire size, ratio, and speed.
|
Steering & Brakes |
Jeep TJ Driveway Alignment
Simple driveway tricks to help you get to an alignment shop after installing a lift kit on a Jeep TJ.
|
Bump Steer Explained
An explination of Bump Steer and how to solve it.
|
Master Cylinder Bleeding Made Easy
A step by step buy to bleeding a replacement master cylinder.
|
Bleeding Brakes
A summary steps to pedal bleed a brake system.
|
Speed Bleeder Installation
Installation of do it yourself brake bleeding system.
|
Teraflex Steering Diagram
A diagram from Teraflex that shows how bumpsteer can be avoided by aligning suspension and steering components.
|
Soft & Hard Tops |
Fabric Cleaning Methods For Your Soft Top
An explination of how to clean soft top material.
|
Bestop Soft Top Color Selection and Year Ranges
Color Swatches for Bestop Soft Tops and the years they were used.
|
Jeep Wrangler Bestop Supertop Soft Top Hardware Configuration
A description of the Supertop hardware for both YJ's and TJ model Wranglers.
|
How to protect your Bestop Soft Top Products
A summary of how to protect your Bestop Products.
|
Jeep Wrangler Factory Soft Top Hardware Configurations
A picture guide to what factory OEM soft top hardware looks like for Wranglers.
|
Bestop Glossary of Terms
An explination of the terms used in Bestop soft tops.
|
On the Trail |
On-Board Air Systems Explained
Brad Kilby explains what is needed for an engine driven on-board air system.
|
Off-Road Dictionary by TeraFlex
A collection of common off-road related terms as presented by TeraFlex.
|
What To Carry In Your 4x4 and Equipping Your Vehicle
An informative article by Rick Russle of Sidekick Offroad of what to carry on the trail.
|
4wd Owners Tips
A simple article discussing how 4wd vehicles are different from other cars on the roads and the safety needed in driving them.
|
Maintenance |
Identify Your Jeep
A guide to help identify which type of Jeep vehicle you have.
|
Jeep Vehicle Guide
This Chart Explains what Jeep vehicle has what letter designation. Courtesy of Jim Allen.
|
Common Types of Vehicle Fittings
A diagram showing the various types of fittings used on a vehicle.
|
Jeep Wrangler 2005-2006 TJ Specifications
Factory Specifications for the 2005 - 2006 Jeep Wrangler TJ
|
Jeep Wrangler 2007-Present JK Specifications
Factory specifications for the 2007 Jeep Wrangler JK
|
Jeep 2007-Present Wrangler Unlimited JK Specifications
Factory specifications for the 2007 Jeep Wrangler Unlimited JK.
|
Metric to Standard Conversion Chart
A handy chart to convert metric measurements to standard measurements.
|
Jeep Vehicle Wheelbase Chart
A handy chart showing the wheel base of most Jeep vehicles.
|
Jeep Wrangler Fluid Capacities
A nice handy chart to show you how much fluid the different parts of your vehicle require.
|
Steel Gauge Conversion Table
A conversion for sheet metal guage thickness to Inches and MM.
|
Teraflex TSB 080701
Issue: Snap Ring failure and premature bushing wear on the TeraFlex FlexArm and JK Track Bar Joints.
|
Diagnostic Codes for 2007 to Current Jeep Wrangler JK
A list of easily obtainable codes to diagnose problems with the 2007 and newer Wrangler's.
|
Lighting, Lenses & Bulbs |
Lighting Made Easy
An article explaining the differences between various forms of highway and off-road lighting.
|
Headlight Aiming Tips
When lifting Jeeps the headlights are often over looked so use this simple guide to adjust your headlights aiming pionts.
|
Lift Kits & Suspension |
Old Man Emu Suspension Terminology
A simple guide to terms used in OME Suspensoin guides
|
Superlift Suspension Lingo
Some common, and sometimes funny, terms used in suspension provided by Superlift.
|
Installation of a Rubicon Express Budget Boost Lift Kit
Simple article with photos on the installation of an RE Budget Boost kit. Can be used with any 'puck' style lift.
|
Shackle Length and Their Impact on Spring Movement
A summary of how different shackles can impact a leaf sprung suspension.
|
Interior |
Inside a MasterCraft Racing Seat.
Details on the construction of a MasterCraft Racing Seat.
|
Sony Head Unit Install Article from J Rations Magazine
Quadratec delivers a true plug-n-play system for those looking to upgrade their Jeep Wrangler TJ's audio environment.
|
Exhaust |
Catalytic Converters Explained
The truth about catalytic converters explained by Random Technology.
|
Exhaust System Components and Design
A summary of what parts make up and exhaust sytem, and why.
|
Exhaust System Basics
An article explaining why you need an exhaust and what influences exhaust design.
|
What is Horsepower?
How horsepower is determined.
|
How a Muffler is Constructed
Inside mufflers to see how they baffle engine sound.
|
Engine & Fuel System |
Air Filter Facts
Article explaining how airfilters work and the reason why K&N is the worlds best air filter.
|
OBDII Codes for Jeep Vehicles 1997 to Current
A short list of OBDII codes used in Jeep vehicles. OBDII Code Reader Required
|
OBDI codes for Jeep vehicles 1990 through 1997
A chart showing all OBD I codes for Jeep vehicles.
|
OBD Acronyms and Jargon
A listing of OnBoardDiagnostics abbreviations and terms.
|
K&N Premium Oil Filters
An article showing the benefits of using a K&N Premium Oil Filter.
|
Automotive Instrument Functions
What instrument guages are what and why you need them.
|
Engine Enhancements
A summary of engine modifications and what they do.
|
Engine Size Conversion Table
A handy guide to reference engine size from Liters to Cubic Centimeters, Cubic Inches and back.
|
Jeep Engine Guide
A guide to what engine was and is in what Jeep.
|
Cooling System Overview
A simple overview of a vehicles engine cooling system.
|
Fan Clutch Diagnosis
How to determine if your temerature controlled fan clutch is operating properly.
|
Internal Combustion Engine Basics
An article describing how an average engine works.
|
OBD Acronyms
A summary of acronyms used in OBD system diagnostics.
|
Electrical |
Reading an Engines Spark Plugs
An article showing how to diagnose common spark plug conditions and their causes.
|
Jeep Electronic Control Unit Reset
A simple procedure to reset the ECU for 91' or newer Jeep Wranglers.
|
12 Volt Wiring Distance and Gauge Chart
A simple chart explaining the gauge wire to use with a set amperage at a set distance.
|
How to use a Multi-Meter
An article discussing how to use a multimeter in diagnosis of electrical problems in a Jeep vehicle.
|
Ohm's Law Defined
An article explaining the relationship between power, voltage, current and resistance.
|
Driveline |
Powertrax Axle Differential ID Guide
A simple chart to allow the identification of axles by their differential covers.
|
Driveline Geometry 101
An informative article that simplifies the changes made to a driveline when a vehicle is lifted courtesy of Tom Woods
|
Drive Shaft Slopes & Angles
An article explainin drive shaft slopes and angles courtesy of Tom Woods.
|
Detroit Locker FAQ
Allows the use to test and see if their Detroit Locker from Tractech is functioning properly.
|
Universal Joint Size Chart for Jeep Axles and Driveshafts
A chart showing the common drive shaft and axle shaft u-joint sizes.
|
Jeep Factory Axle Identification Chart
A chart provided by Crown Automotive that allows the identification of the factory axles in Jeep vehicles.
|
Transfer Case Identification Chart for 1941-1979 Jeep Vehicles
Advance Adapters Transfer Case Identification chart for 1941-1979 Jeep Vehicles.
|
Manual Transmission Identification Chart for 1980-1986 Jeep Vehicles
Advance Adapters Transmission Identification chart for 1980-1986 Jeep Vehicles.
|
Transmission Identification Chart for 1941-1979 Jeep Vehicles
Advance Adapters Transmission Identification chart for 1941-1979 Jeep Vehicles.
|
Transfer Case Identification for 1987-2007 Jeep Vehicles
Advance Adapters summary of the NP200 Series Transfer case widely used in Jeep from 1987-2006.
|
Installation of a RockCrusher Differential cover for a Model 30 front axle.
Installation of a RockCrusher heavy duty differential cover. Also a simple how-to on changing differential fluid.
|
How to Maintian Your Driveshafts
An exceptional article from Tom Woods explaining how to maintenance your drive shafts.
|
Drive Shaft Failure
A summary of drive shaft failures & their causes provided by Tom Woods.
|
Driveline Harmonic Vibration Explained
An article by Tom Woods explaining how harmonics are created in the drive line.
|
Manual Transmission Identification for 1987-2008 Jeep Vehicles
Advance Adapters Manual Transmission Identification chart for 1987-2006 Jeep Vehicles.
|
Transfer Case Identification for 1980-1986 Jeep Vehicles
Advance Adapters Transfer Case Identification chart for 1980-1986 Jeep Vehicles.
|
Jeep® Speedometer Gear Tooth Chart
When putting larger tires or changing gear ratios in a Jeep the speedometer gear must also be changed to allow the speedometer to show an accurate speed.
|
Off-Road 101 on Low-Range from TeraFlex
An article on the use of low-range while going off-road by TeraFlex.
|
Transmission Clutch Basics
The parts of the clutch assembly are broken down and described along with their function.
|
Differentials Explained - Standard or Open Differential
An article explaining how an open axle differential works.
|
Differentials Explained - Limited Slip Differential
An article explaining the different forms of limited slip.
|
ARB Locker Installation
An instillation of an ARB Air Locker in a Dana Model 30 Axle.
|
Jeep Wrangler YJ Posi-Lok Installation
An installation of a Posi-Lok to cure an ailing 4wd shifting problem in may YJ's and XJ's.
|
Wrangler Axle Differential Ratio Sheet
A quick summary of Wrangler YJ & TJ models Drive line components.
|
Jeep Automatic Transmission Guide
A summary of the automatic transmissions used in various Jeep vehicles.
|
How Constant Velocity (CV) Joints Work
A simple diagram and explanation of how CV joints work.
|
About Viscous Couplers
An explanation from Crown Automotive about how Viscous Couplers work.
|
Hydraulic Bleeding of External Clutch Slave Cylinders
How to bleed slave cylinders without an external bleed screw.
|
The basics of 4:1 Transfer Case gearing.
An article by Teraflex explaining how a 4:1 kit works for the NP231 Transfer Case
|
Easy Gear Ratio Determination
A simple test to determine your gear ratio.
|
Which Axle Type is Better?
A summary of common types of axles used in vehicles.
|
Differential Torque Values
A chart for showing the needed torque values for differential assembly.
|
Ring & Pinion Ratio Calculation Chart
A simple chart showing the number of teeth in the pinion and the ring gear to decipher what ratio you may have.
|
Choosing An Axle
A short summery of axle descriptions courtesy of Dynatrac.
|
How an Auburn Gear ECTED Locker Works
A detailed description of what takes place to make the ECTED Locker 'lock'.
|
Body & Frame |
POR-15 - Frequently Asked Questions
An FAQ to understanding how POR-15 products can help you.
|
POR-15 Coverage Information
Information on how much POR-15 to use for a given surface.
|
POR-15 Application Procedures
Simple tips on getting the most out of using POR-15.
|
Vehicle Identification Number (VIN) 87-88 Jeep Wrangler YJ
A table showing how to read the VIN for your Jeep Vehicle.
|
Vehicle Identification Number (VIN) 71-74 Jeep CJ
A table showing how to read the VIN for your Jeep Vehicle.
|
Vehicle Identification Number (VIN) 89-95 Jeep Wrangler YJ
A table showing how to read the VIN for your Jeep Vehicle.
|
Vehicle Identification Number (VIN) 75-80 Jeep CJ
A table showing how to read the VIN for your Jeep Vehicle.
|
Vehicle Identification Number (VIN) 81-86 Jeep CJ
A table showing how to read the VIN for your Jeep Vehicle.
|
Vehicle Identification Number (VIN) 97-03 Jeep Wrangler TJ
A table showing how to read the VIN for your Jeep Vehicle.
|
History of the Vehicle Identification Number "VIN"
History and description of what, and where, a VIN is.
|
Decal & Sticker Installation
Simple instructions on installing your decals or stickers.
|
|
United Four-Wheel Drive Associations
|
