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.
Table of Contents[Hide][Show]
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.
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 …
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 …
Decoding Jeep Wrangler TJ VIN Numbers
Jeep Wrangler TJ VIN numbers can be found on the inside of the windshield on the drivers side.
YJ Frame Dimensions
Have a YJ and need some frame measurements to fabricate or correct something? Check out the specifications below.
Explore more Jeep Jeep Vehicles Tech
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 Wrangler Pentastar 3.6L Oil Change – Part 2
Continued from Part 1 – Tighten up the cap and move to the underside of the Jeep. Using a 13mm socket loosen and remove the oil drain plug. Make sure you have a drain oil container ready to …
Wrangler TJ Cooling System Maintenance
The jeepfan.com 2004 Wrangler TJ Unlimited has almost 195,000 miles on it. Since we have only owned it a short time it’s hard to know its maintenance history and recently we have noticed that …
6 On the Trail Radiator Repair Tips
By Rick Webster – 4X4Review.com For those of you that do their 4-wheeling in some remote area or in some vegetated sections that typically have tree limbs that poke out, we comprised this list …
Explore More Jeep Engines Tech
Jeep Tires Tech
Tires are such a common upgrade to our Jeeps, making the right choice can be a challenge.
Tire to RPM Ratio Chart
The following chart shows engine rpm at 60 mph for various combinations of final drive ratio and tire diameter. If you want to determine rpm at a speed other than 60, or for a combination of ratio and …
How to Pick the Right Tires for your Truck
This is an excellent article written by Jeff Jackson about selecting the correct tires for your vehicle.
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 …
Jeep Tires TechExplore More Jeep Tires Tech
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.
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 …
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 …
Explore More Jeep Wheels Tech
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.
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 …
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 …
Explore More Jeep Suspension Tech
Jeep Bumpers, Exterior and Armor Tech
Winches, winches, and winches
In the not so distant past there were only the big boys of the winch world. Those companies like Warn, Superwinch, and Ramsey were the names everyone knew when looking for a winch for your Jeep. …
Protecting Your Jeep’s Underside – The Suspension, Steering, and Exhaust
Some components under your Jeep are vulnerable and are often overlooked. The suspension, steering, and exhaust system are key components that your Jeep needs to have protected.
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 …
Explore More Jeep Bumpers, Exterior and Armor Tech
Jeep Chassis and Body Tech
JK Wrangler Freedom Top Panel Installation
Stop the Leaks! A reader sent in this article to us and we liked it so much we put it here for others to benefit from it too. Many JK owners out there have experienced leaks with from the Freedom Top …
YJ Frame Dimensions
Have a YJ and need some frame measurements to fabricate or correct something? Check out the specifications below.
4 Door Wrangler JK Freedom Top Hanger DIY
This home grown hard top storage solution by Shawn (RedRockJK) Ayres is an inexpensive and effective way of storing your 4 door Jeep’s hard top. We added a bit to his great idea along the way.
Explore More Jeep Chassis and Body Tech
Jeep Electrical Tech
CB radios and The Ground Plane
I suffered with CB radios in my Jeep. No matter what CB or antenna I used I suffered with poor performance. Noise, inability to hear, and even engine electrically problems. My Jeep would literally …
Adjusting JK Wrangler Headlights
The new JK Wrangler uses new style headlight lenses with bulb inserts instead of sealed beam bulbs found in previous model Jeep Wranglers and CJs. After installing lift kits and/or larger tires you …
Novak Guide to Electrical Conversions in Jeeps
Information courtesy of Novak Conversions A good electrical system depends on clean sound connections, free of grease, dirt or corrosion. The condition of connections to ground is just as important as …
Jeep Electrical TechExplore More Jeep Electrical Tech
Jeep Gear Tech
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 …
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 …
Explore More Jeep Gear Tech
Jeep Driveline Tech
Installing a Chrysler 727 into a CJ
A few years back we covered a frame up restoration of Rich’s CJ. The old Jeep was stripped and completely redone. See Rich’s 84 CJ-7 Restoration After a few years the engine that Rich had …
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 …
Differentials – explained
What’s a differential and what’s the difference? When a vehicle is negotiating a corner, the outside wheel has to travel a grater distance than the inside wheel. Therefore, the outside …
Explore More Jeep Driveline Tech
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 …
The RTI Ramp
A vehicle’s RTI or ramp travel index is a measurement of a vehicles suspension (and frame) flexibility. In many situations off-road a vehicles flexibility may be the determining factor of …
Explore More Jeep Driving Tech
Jeep Garage and Tools Tech
On the Trail Tire Repair
If you visit the Rubber Manufacturers Association’s website, it will inform you that the only way to safely repair a tire is with a plug-patch combination. If you talk with fellow Jeep owners, …
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 …
Tap and Drill Bit Size Chart
Tap and Drill Bit Size Chart The charts below show you what size drill bit to use with a tap. Tap sizes are shown as hole size – threads per inch. Example 1/4-20 = 1/4″ hole, 20 threads …
Explore More Jeep Garage and Tools Tech
Pot Luck
Here’s a random pick of all the articles that deal with Jeep tech.
TJ Computer Error Codes
Experiencing a check engine light on your Jeep Wrangler TJ? Get your hands on a diagnostic code reader and see what it’s saying. Code readers can usually be borrowed or rented from local auto …
ARB Locker Tech
ARB Air Lockers is a driver controlled differential lock actuated by pushing a dash mounted button. In only one tenth of a second compressed air actuates a piston inside the differential which engages …
A Pictorial Jeep Model Guide
Below is a pictorial guide of Jeep models spanning from 1940 to 2006. The guide includes model, years built, an image, and more.