This section deals with the nitty gritty details of Jeep tech related topics like Jeep models, engines and drivetrains. You could find details of a particular model year Jeep or specifications of a Jeep’s transfer case. Even information on Jeep engine swaps and axles. You won’t find reviews or projects here, for that check out the Projects and Installs page.
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Jeep Vehicles Tech
Here you find all kinds of technical information and how-to articles about Jeep vehicles. Special models, new models and some old ones so much to read here.
Help Identifying a CJ-5 or a CJ-3B
A reader submitted us a question about a Jeep he was trying to identify.
Jeep Technical Information
Main Sections The jeepfan.com Jeep tech section provide details on many Jeep parts. This guide covers most Jeep vehicles from 1941 to 1999. Jeep Engines: These Jeep engine pages cover stock Jeep …
Transfer Case Upgrades, Modifications, and Options
We get a lot of email from fellow Jeepers wanting to know what the options are for killer transfer cases. Some are looking for strength while others are looking for low gears. In this article we …
Unichip Performance Module & Airaid Cold Air Intake Dyno Test
Together with OK Auto we put two JK Wrangler Unlimiteds on the dyno at G&S Autoworks in Oxford, NJ to test the results of the performance products we were installing. The products involved int the …
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Identifying Jeep Vehicles
Trying to identify your Jeep or one you are looking to buy? Maybe you just want to become an expert at identifying Jeeps?
CJ Renegade Spotters Guide
A guide to identifying CJ Renegade Jeeps Jeep started the Renegade option in 1970 on the CJ-5 model and continued it all the way to the end of the CJ series in 1986. Renegade models offered special …
Spotters Guide to the 72-75 AMC CJ-5
Identifying a Jeep – An In-depth Spotters Guide to the 72-75 AMC CJ-5. When AMC acquired the Kaiser Jeep Corp in 1971 they made many changes to the Jeep line starting in 1972. Identifying a …
Jeep Vehicles VIN Reference Guide
Decoding Jeep VIN Numbers The Vehicle Identification Number, or VIN is important for many reasons. Most of these reasons have nothing to do with us owners. But to a serious Jeeper the knowledge of …
Jeep Spotters Guide
Below is a chart giving information on various commonly found Jeep vehicles including model years, names, tech info, etc…If you find any discrepancies in this chart or have any thing to add click here …
Jeep Engines Tech
We all are chasing engine technical information from time to time. From error codes to oil capacity.
Jeep Engines – Factory Engines, Engine Conversions, Engine Swaps
These Jeep engine pages cover stock Jeep engines, engine swaps, engine performance, and engine rebuilds.
Jeep Wrangler Pentastar 3.6L Oil Change
The jeepfan.com 2012 Wrangler Rubicon hit 3588 miles and the Change Oil indicator started showing on the instrument cluster after every startup. Time for the first oil change..
Wrangler JL 3.6L V6 Oil Change
The 2018+ Wrangler JL uses the same 3.6L V6 as the 2012-2018 Wrangler JK. There are some internal tweaks, but it’s mostly the same on the outside. A redesign of the top engine cover makes …
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Jeep Tires Tech
Tires are such a common upgrade to our Jeeps, making the right choice can be a challenge.
How-To Read a Tire – What Does the Sidewall Say?
The side of your tire, known as the sidewall, contains all the information you will need to know about your tire. Whether your tire says “Goodyear” or some other name, all tires are …
Checking Tire Pressure – Determine Correct Pressure
How to figure the correct tire pressure for larger tires. This article was spawned from a continuing conversation from our Jeeping friend Bob in his quest to get his JK handling correctly. If your …
Determining the Tire Contact Patch
You buy new (and larger) tires and possibly wheels for your Jeep and you wonder what’s the proper pressure. It’s often different than the stock tires since the larger tires are …
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Jeep Wheels Tech
Along with tires, wheels are a common upgrade to a Jeep. There’s so much more than just picking a style you like. Making sure they fit correctly is an important factor in choosing wheels.
Wheel Terminology
WHEEL TERMINOLOGY Offset: The distance from the centerline of the wheel to the face of the mounting surface of the wheel that contacts the hub. Negative offset: Indicates the mounting pad is behind …
What Jeep Wheels Fit?
Often we get questions on what tires fit on what kinds of Jeeps with this or that lift, etc. In addition we get many questions asking on what jeep wheels fit on this particular Jeep or that. The Jeep …
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Jeep Suspension Tech
Lift kits and suspension mods are maybe second to tires and wheels. We discuss all kinds of options and how to pick the correct lift for your Jeep.
What Tires Fit?
We put together a little reference guide for those of you wondering what size tires will fit under your Jeep. These are general guidelines, your vehicle may be different. We are only going to cover …
Jeep Spring Lift vs. Spacer Lift: Benefits, Differences, and Costs
When it comes to lifting a Jeep Wrangler TJ, JK, JT or JL, two of the most common approaches are spring lifts and spacer lifts. Both raise the ride height, but they do so in very different ways, and …
Jeep Wrangler JK Alignment
After the installation of a lift on a Jeep an alignment will make sure the Jeep tracks correctly down the road and prevent premature tire wear. Unlike a typical car the Jeep Wrangler continues the …
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Jeep Bumpers, Exterior and Armor Tech
Jeep Wrangler JK Front Bumper Guide
Since the JK introduction in the 2007 model year many many different manufacturers have designed bumpers in all shapes and sizes. Some are classy, some bulky and ugly. Many have winch mounts, air …
Jeep Wrangler JK Front Bumper Guide Part 2
Part 2: Since the JK introduction in the 2007 model year many many different manufacturers have designed bumpers in all shapes and sizes. Some are classy, some bulky and ugly. Many have winch …
Protecting Your Jeep’s Underside
Most Jeeps come factory with some protection for the basic parts underneath. The gas tank, transmission, and transfer case are usually among the factory protected. Sometimes the factory protection is …
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Jeep Chassis and Body Tech
Fixing JK Wrangler Door Water Streaks
Anyone who has a JK Wrangler should be familiar with the streaks that come after washing or a good rain. The water seems to collect behind the mirrors and slowly drain out down the door leaving behind …
Jeep CJ-5, CJ-7, and CJ-8 Scrambler Frame Dimensions
The following images outline the frame dimensions on late model (76-86) CJ vehicles. These images can come in handy when attempting to straighten or customize a Jeep frame. Also see CJ-5 Frame …
CJ Restoration Steel vs. Fiberglass Jeep Bodies
Steel vs. Fiberglass Jeep Bodies: Pros, Cons, and Considerations At some point, most Jeep owners, especially those working on older CJ restorations, end up facing the same decision: steel or …
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Jeep Electrical Tech
Lighting the Trail: Jeep CJ an TJ Headlight Options
The factory headlights on a Jeep CJ and TJ do one thing reasonably well—they turn on. Beyond that, performance is often lackluster, especially if you’re driving at night on country roads or …
JK Wrangler Power Locks Tweaks
There seem to be many combinations of the power lock operation in the new JK. Some of these procedures are under debate and some you may need to try a few times to get it right. Use at your own risk.
Wiring Basics – Connectors
At some point a Jeeper decides to install a new gadget or modify an electrical component. Often these electrical items are a CB radio, auxillary lights, or a piece of audio equipment..the list goes …
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Jeep Gear Tech
CB Antenna Selection and Mounting Considerations
CB Antenna Selection and Mounting Considerations by Right Channel Radios, article reprinted with permission. There are a large number of CB antennas on the market and it can be a daunting task …
GoPro Hero Cameras – Capture the Moment
Nothing is more enjoyable tackling some challenging trails and having your vehicle (and you) surviving to tell about it. Even better, capture the moment on video to relive the experience and prove it …
Selecting the Best CB Radio
Selecting the Best CB Radio by Right Channel Radios, article reprinted with permission. The most important thing to understand when choosing a radio is that all CBs, regardless of their price, are …
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Jeep Driveline Tech
Toe, Caster, and Camber – Adjusting Camber
Jeep Steering Alignment 101 – Dana 30 and Dana 44 Front Axle Camber Adjustment
Trail Driving Technique
Slippery conditions can turn a normally easy trail into one that is nearly impassable. Snow is an obvious cause, but on certain soil types a rain storm can turn the surface of the soil into something …
Clutches, Linkages & Bellhousings for Jeep Conversions Part 2
Clutch Release BearingAs its name implies, this is the bearing that releases the clutch. It is often referred to as a “throw-out” bearing. They come on a number of different style …
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Jeep Driving Tech
Jeep Quadra-Trac 4wd System
The Quadra-Trac name is used on a variety of Jeep full-time 4WD systems. It was available on several Jeep vehicles over a span of years. Often the name Quadra-Trac name was used to refer …
The Art of Trail Spotting
No matter how skilled of an offroader you are a good spotter can make a difficult section of trail safer and more fun. Many causes of broken parts and body damage is the due to the lack of …
Go Jeeping – Up Hill Driving Technique
Many types of terrain will be encountered when off road, hills can be some of the most fun. Personally, I enjoy hills more than just about anything else, especially uphill. Up hill driving …
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Jeep Garage and Tools Tech
Removing Seized Nuts and Bolts
This article attempts to allow you to arm yourself with knowledge about removing stubborn fasteners. The items are listed from what we believe is a first to last resort. Happy wrenching, or in this …
What is ISO? – International Organization for Standardization
What is ISO? – International Organization for Standardization The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from …
Millermatic 175 Mig Welder
A Jeepers garage is not complete without a quality welder. The Millermatic 175 is a small, portable welder that offers capabilities and features the home fabricator needs. The …
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Pot Luck
Here’s a random pick of all the articles that deal with Jeep tech.
Mopar to Offer More Than 250 Accessories for New 2012 Jeep Wrangler
PRESS RELEASE: In a recent Chrysler press release it was indicated that Mopar will offer more than 250 accessories for the 2012 Jeep Wrangler. From winch bumpers to grab handles these official Jeep …
New Jeep Advertising Tagline: Have fun out there. Jeep
PRESS RELEASE The Jeep® brand announced in June 2007 it is launching a new brand advertising campaign on July 1 that will take advantage of the brand’s expanded seven-vehicle lineup, its 66-year …
YJ Frame Dimensions
Have a YJ and need some frame measurements to fabricate or correct something? Check out the specifications below.