Variety of Information Available at 4WD Mechanix Magazine!

Find hundreds of tech articles and High Definition videos right here!…Discover the 4WD Mechanix ‘Tech and Travel’ Forums—No login for forum guests!

Performing work on a 4×4 truck, Jeep®, SUV, ATV or dirt/dual sport motorcycle? Need reliable answers to your technical questions or advice on upgrade equipment that works?

Mark Greene interviews Moses Ludel as a guest at “Cars Yeah!” Recorded live, this podcast is now available at the Cars Yeah website, Twitter and iTunes…Join us!

The subject of valve clearance on AMC/Jeep 232/258 and 4.0L inline six engines is topical at the magazine’s forums—and across the internet! In this vlog, Moses Ludel talks about checking and setting valve clearance on 1964-2006 AMC-Jeep inline sixes. Viewers at this magazine site and the forums can benefit from this level of information.

Jeep and Ram Truck RE/RH Transmission Upgrades
Moses Ludel instructing oxy-acetylene welding process!

Find articles like the Jeep® and Dodge Ram Truck RE/RH transmission upgrades (at left) that provide 4×4 enthusiasts with in-depth reliability and survival insights! At right, Moses Ludel shares welding processes at the magazine’s ‘How-to Welding Class’.

John Williams knows tires. Years of desert and Baja racing, plus instructing and prepping vehicles for Miller Motorsports Park, make John expert at assessing the new BFGoodrich® All-Terrain T/A KO2 tires. At the 2015 Moab Easter Jeep Safari, BFG® Tires, Raceline Wheels and Poison Spyder Customs sponsored trail runs at Area BFE/BFG, and John Williams discussed the new BFG® KO2 tires. Learn why this breakthrough tire design excels both on- and off-road…For the article and more details, click here!

At the 2015 Moab Easter Jeep Safari, BFGoodrich® Tires, Raceline Wheels and Poison Spyder Customs presented a special run for Jeep JK Wrangler owners. Area BFE, suitably renamed “Area BFG” for the event, presented three levels of trails. Watch celebrity race drivers and professional instructors help newcomers and seasoned four-wheelers find their way over the rough stuff. For the feature article and more details on the Strike Ravine day trail run and the evening’s activities, click here!

BFG All-Terrain T/A KO2 Tire Testing on the Magazine’s Dodge Ram 3500 4×4 Begins at the Discount Tire Store!

Testing new tires requires a solid baseline. The tires need proper mounting and balancing on rims that run true. When 4WD Mechanix Magazine prepared for testing the new BFGoodrich® All-Terrain T/A KO2 tires on the Dodge Ram 3500 4×4, the first stop was the nearby Discount Tire Store. Professional mounting and balance service provides a platform for accurately evaluating these tires, and Discount Tire delivered professional and dependable service.

Advance Adapters’ Latest Products!

Advance Adapters bellhousing for AX15 4.0L and 4.2L Jeep engine applications

The Moab Easter Jeep Safari week takes four-wheeling and dirt OHV recreation to the limit. At the week’s end, the Old Spanish Trails Arena becomes the site for a trade show that includes the 4×4 aftermarket industry’s key players. Advance Adapters’ booth is a popular draw during the trade show. At the 2015 show, 4WD Mechanix Magazine interviewed Steve Roberts. Steve shares the latest Advance Adapters products for Jeep and other 4×4 applications—click here for the HD video coverage!

4WD Mechanix HD Video Network—Now Featuring Vimeo On Demand Instructional Streaming Rentals for Professional Level Technical Training and ‘DIY’ Enthusiasts!

Technical articles and how-to videos have been filmed, narrated and painstakingly edited as Vimeo On Demand productions. This trailer (above) shares details from the very popular Aisin AX15 transmission instructional rebuild. Access the 94-minute streaming rental feature at Vimeo On Demand, click here!

One of the most popular how-to HD video streaming rentals is Moses Ludel’s 66-minute detailed coverage of the AAM 11.5″ and 9.25″ AAM axle rebuild, dealing specifically with these AAM axles and packed with insights into setting up any ring-and-pinion gear set…Click here to access this Vimeo On Demand streaming HD video rental! Comments: This video was invaluable while rebuilding the axle while also changing the gear ratio on my Silverado HD…If installing a Dodge differential into a GM housing you must remove the ABS exciter ring, it has a press fit only and just knocks off with a punch. This is quite a job for the DIY’er to undertake, collect as many pro tools as you can off Ebay, etc…I found that usually the Miller (Chrysler) tools were priced considerably less than the OTC (GM) equivalent. The Miller diff bearing installer wouldn’t fully seat into the Dodge 1-ton gear type limited slip unit without being turned down a bit in a lathe, check before committing to the job on a weekend! It would be good to have a helper during the more physical parts of the process or lots of time and lifting equipment—make no mistake, these differentials are very heavy.”—Vernon in Texas

Streaming Vimeo On Demand: Moses Ludel Rebuilds the Engine Top-End on the Iconic Honda XR650R Motorcycle!

Dirt four-stroke motorcycling part of your off-road lifestyle? This video trailer is brief highlights from the how-to on rebuilding the Honda XR650R upper engine. For access to the entire 54-minute program, including the bonus segments on valve adjustment and tuning tips for this iconic desert enduro engine, click here.* *For those doing only a valve adjustment on this four-stroke engine (and other four-strokes with conventional rocker adjusters), a valve adjustment standalone video is also available at Vimeo On Demand as a streaming rental. Comments: “Coming across this video couldn’t have been more fortuitous—both in timing and content. I happened to inherit a motorcycle of the exact same type and with the exact same problems as the one staring in the clip…The author/producer treats the subject thoroughly and with close-ups giving great detail of the matter at hand. Not only that, he has an online magazine with a forum through which he is eminently available for input and feedback. Having watched this gave me the confidence to embark on the solution on my own—saving loads of money and learning in the process…Coming across this video couldn’t have been more fortuitous—both in timing and content. I happened to inherit a motorcycle of the exact same type and with the exact same problems as the one starring in the clips…The author/producer treats the subject thoroughly and with close-ups giving great detail of the matter at hand. Not only that, he has an online magazine with a forum through which he is eminently available for input and feedback. Having watched this gave me the confidence to embark on the solution on my own – saving loads of money and learning in the process.”—David Easum, Burundi, Africa

How-to Information Available for Free at 4WD Mechanix Video Network and 4WD Mechanix Magazine Articles!

Dirt and dual-sport motorcycles require routine chain maintenance and periodic parts replacement. This is the trailer for the 28-minute HD video. The magazine’s Honda XR650R dual sport-converted enduro bike gets final drive system attention, which presents an opportunity to upgrade the chain and sprockets. The detailed, step-by-step coverage of this important service also provides tips on how to improve your dirt or dual-sport bike’s reliability and stamina. Click here to access the free, feature length video and article!

A professional grade front disc brake job on the Jeep XJ Cherokee.

In this 25-minute how-to HD video, Moses Ludel shares the replacement of brake pads, rotors and related parts on the 1990-95 Jeep YJ Wrangler, 1997-2006 Jeep TJ Wrangler, 1990-2001 Jeep XJ Cherokee, 1990-92 Jeep MJ Comanche and the 1993-1998 Jeep ZJ Grand Cherokee. The instructional video is a thorough orientation to the work, emphasizing safety and quality workmanship. Here are the detailed how-to steps—with none left out! Click here for direct access to this free HD video available exclusively at 4WD Mechanix Magazine and Video Network!

Jeep XJ Cherokee 4.0L water pump replacement

Changing the radiator and water pump on a Jeep inline six? For HD video instructional details on an XJ Cherokee radiator R&R and a water pump removal and replacement on the 4.0L Jeep inline six and similar AMC/Jeep engines, click here. You’ll also find coverage of the radiator removal and installation on a Jeep XJ Cherokee!

Setting up an ARB Air Locking differential in the popular 8.25

This step-by-step how-to coverage includes rebuilding and setting up an 8.25″ Chrysler rear axle in a Jeep XJ Cherokee. The installation of an ARB Air Locker differential is a key feature in this rebuild and upgrade. Click here for the illustrated article!

If you need expert ‘Q & A’ and like the idea of a helpful off-road enthusiast community, visit us as a guest at 4WD Mechanix ‘Tech and Travel’ Forums!

Find 45 forum groups covering 4WD Jeep®, 4×4 truck, OHV, dirt bike and dual-sport motorcycle topics—plus exciting details on global destination travel and outdoor lifestyle tips!

Member comments: “I want to encourage others to become forum members. Joining these forums is free, and it is very easy to become a member…I’m getting reliable information, professional advice, money saving tips, safety recommendations and, for the first time, practical and proven solutions that don’t always involve spending a fortune. And when it’s time to buy parts and aftermarket items, I’m making better choices and have confidence that the upgrades and accessories will actually work!…Join us, you’ll be doing yourself a huge favor, and we’d like your participation!”—Posted by Member ‘Biggman100’

“I first read Moses Ludel’s writings when I bought his Jeep Owner’s Bible years ago. I joined the forums to solicit advice on my cylinder #1 misfire. My mechanic advised replacing the motor due to the 250k mileage. Moses started with fundamentals, rather than part swaps. And other folks here have chimed in with additional advice. The misfire topic is getting a lot of views, so I assume there’s a bunch of other TJ owners whose Jeep 4x4s are aging and need some attention. I agree with Biggman100, joining these forums and posting a question is going to get you help and educate the rest of us.”—JJ_Jeep, Forum Member since June 8, 2013

“In response to your reply, Moses, I’m mind blown…It will take me a couple reads to soak this all in, but once again, mind blown. I wish you were my neighbor!”—Member Megatron

4WD Mechanix Magazine ‘Tech and Travel’ Forums: Member Photo Gallery! Join for free and share your vehicles, off-road equipment and outdoor lifestyle photography! “These forums are the way it should be for people looking for facts and support and for those trying to help. Also, I like the easy to use Garage Photo Gallery feature for your builds. It’s like having your own magazine showcase!”—Member Megatron

March is the Reno Expo, considered the launch of another 4WD season at the Sierra region. Join us at this HD video tour of four shows under one roof, including the Reno Off-Road & Motorsports Expo, Reno Boat & Recreation Show, Reno Spring Home & Garden Show and the Reno Pet Show! Latest News…Why we run BFGoodrich Tires on the magazine’s 4x4s:


BFG Baja KR2 Tires winning desert racing!
BFG Baja KR2 racing tires!

BFGoodrich helps Lofton Claim Win and secures nine of top 10 overall finishers…

GREENVILLE, S.C. (Mar. 20, 2015) – Four for four. That is the headline for the success BFGoodrich® Tires has had in the desert in 2015 after Justin Lofton claimed the overall win at the Polaris RZR Mint 400 outside of Las Vegas last weekend. This is Lofton’s second race since choosing to rely on BFGoodrich and its Baja T/AKR2 race tire, which continues to solidify its claim as the dominant desert racing tire in the industry.

In addition to Lofton’s win, drivers on BFGoodrich Tires won accounted for nine of the top 10 overall finishers and 16 of the top 20 as well as 12 class wins. In the Class 1000 category, Roger Starkey won on the company’s new 35-inch Baja T/A KR2 designed for that class. In all, 14 of the top 16 in this class ran the new tire.

After claiming 10 of the 11 major North American desert races in 2014, drivers on BFGoodrich Tires continue the run of success with its fourth consecutive win in these races to make the tally 14 of the last 15 desert races won on the company’s tires. More than 60 percent of the field at the race chose BFGoodrich Tires. “To say we are ‘back in the desert’ is now becoming an understatement,” said Chris Baker, motorsports director for BFGoodrich Tires. “When you see success as we did this weekend at the Mint 400, it justifies the focused effort and investment BFGoodrich has made to bring the best race tire to our drivers. We are filled with pride when racers trust in our products like Justin Lofton did this year. It’s more than a leap of faith to switch technical partners when desert racing is so competitive. Racers are looking for the equipment to provide them whatever edge they can get. We are proud to have been able to deliver that to Justin and the racer community using our products.”

BFGoodrich Performance Team member Rob MacCachren took his trick truck in third overall just behind Robby Gordon to round out the podium.

Again the MINT 400 proved to be one of the toughest desert races held in the United States as rough terrain and winds caused difficult sightlines for drivers. For Lofton, that wasn’t going to stop his progression forward. After two laps, he trailed leader Robby Gordon by just under 10 minutes. With a fresh set of KR2 tires, he hunted down and passed the leader to claim the win.

After, Lofton remarked, “Race went great for us. We had a three step plan of making it to the finish line and it worked out perfectly. Our BFGoodrich Tires worked great. We hammered on them all day and they wanted more. I couldn’t be happier with our program this year.”

Other notable accomplishments included the win by 62-year old Sam Berri in Class 1500, in which he ran the same set of BFGoodrich Baja T/AKR2 tires the entire race.

The BFGoodrich Tires Baja T/AKR2 continued where it left off at the last race, setting the bar for desert race tires. The tire, whose design and technical attributes were the foundation for the recently released consumer tire, the All-Terrain T/AKO2, not only helped Lofton to the win but was on seven class wins, 12 of the top 16 overall and 14 of the top 16 finishers in Class 1000.

TOP 10 OVERALL FINISHERS (BOLD indicated driver on BFGoodrich Tires)

1. Justin Lofton (Class 1400) 5:57:38
Robby Gordon (Class 1400) 5:59:03
3. Rob MacCachren (Class 1400) 6:05:31
4. Carlos Apdaly Lopez (Class 1400) 6:12:14
5. Gustavo Vildosola Jr. (Class 1400) 6:14:10
6. Dan McMillin (Class 1400) 6:21:54
7. Luke McMillin (Class 1400) 6:23:21
8. Gary Weyhrich (Class 1400) 6:24:24
9. Sam Berri (Class 1500) 6:24:27
10. Cody Parkhouse (Class 1500) 6:24:41

BFGoodrich Tires Class Winners

Trick Truck Justin Lofton
1500 Sam Berri
6100 Brett Sourapas
7200 Steve Kovach
8000 Dave Westhem
1000 Roger Starkey
1800 John Webster
2900 UTV Logan Goodall
4500 Steve Rountree
4700 Robert C Johnson
1100 Justin Buckley
3000 Mike Bach

Using motorsports as a proving ground for more than 40 years, BFGoodrich Tires is involved in every type of racing, including sports car, short course, desert, dirt, rally and extreme rock crawling. BFGoodrich Tires combines technological expertise with vast motorsports experience, delivering a high-performance tire for every type of vehicle. Visit the BFGoodrich Tires Racing site at on Facebook at or on Twitter at @BFGoodrichTires.

SCORE International and BFGoodrich® Tires Bring the ‘Baja 1000 Experience’ to the 2014 SEMA Show!

The 2014 SEMA Show at Las Vegas, Nevada featured the first SCORE International ‘Baja 1000 Experience’. The newest addition to the SEMA Show attracted a large crowd. This HD video covers the press conference and BFGoodrich® KO2 All-Terrain tire comments!

Bestop® Introduces Trektop™ Pro Soft Top at 2014 SEMA Show!

Bestop Trektop Pro soft top for Jeep JK Wrangler

Bestop® showcased the new Trektop™ Pro at the 2014 SEMA Show! This innovative new soft top features breakthrough innovations like framed, glass-sliding rear side windows and a glass tailgate window! Watch this HD video coverage and a tour with Bill Haberkamp.

See the Awards Ceremony Coverage from the 2014 SEMA Show!

2014 SEMA Show New Products and Hottest Vehicle Awards

The 2014 SEMA New Products Awards and SEMA Hottest Vehicle Awards took place at the show’s opening. In this HD video coverage directly from the Las Vegas SEMA Show, join us and see the best new products available from the automotive aftermarket!

Technology Breakthrough: Testing the Enerpulse Pulstar® Spark Plugs in the Magazine’s On- and Off-Road Vehicles!

Enerpulse Pulstar® spark plug testing in the Jeep 4.0L engine
Gapping the new Enerpulse Pulstar® PlasmaCore spark plug!

Enerpulse Technologies’ Pulstar® PlasmaCore spark plug technology is at the leading edge of internal combustion engine performance gains and emissions reduction. Click here for our HD video coverage of the Pulstar® spark plugs. See details and our real world testing!

Our Honda XR650R Motorcycle: Acerbis Sahara Fuel Tank Added for Long Distance Travel and Field Video Work!

Honda XR650R with Acerbis 6.3 gallon Sahara fuel tank!

The magazine’s Honda XR650R is our video filming platform for remote desert. The factory 2.6 gallon fuel tank is too small for dual-sport use. In this detailed how-to HD video, see the installation of an Acerbis Sahara fuel tank on our Honda XR650R motorcycle!

Honda XR650R Dual-Sport Get Ready: Nelson-Rigg Luggage plus TCI Products Racks and Skid Plate Crankcase and Side Cover Protection!

TCI Products Sequoia tail and saddle bag rack for the Honda XR650R motorcycle
Video gear on board for field filming off-road

The magazine’s Honda XR650R dual-sport motorcycle carries valuable video equipment and camping gear into the backcountry. In this video series, see how Nelson-Rigg motorcycle luggage and TCI Products racks and engine protection work for us!

Mounting and Testing Michelin Dual-Sport T63 and Off-Road Cross AC10 Motorcycle Tires

The magazine's Honda XR650R ready for video filming on the road and trail!

At left, 4WD Mechanix Magazine’s Honda XR650R motorcycle is ready to roll with fresh Michelin T63 tires and matching tubes! Used for video filming at remote desert and mountain venues, tires must be reliable, trail and road worthy—and durable!

Michelin T63 and Cross AC10 tires for DOT dual-sport use

In this two-part HD video series, we mount and test Michelin’s T63 and Cross AC10 dual-sport motorcycle tires. These tires and matching tubes are DOT approved for use on public roads and highways. The T63 is a 50/50 highway and off-pavement design.

We Turn to L.A. Sleeve Company for Machine Work on Our Honda XR650R Motorcycle Top-End Engine Build!

At the heart of our Honda XR650R dual-sport bike is a freshly built, uncorked engine. With Hot Cams ‘Stage 1’ camshaft and L.A. Sleeve head and cylinder work, this powerplant pumps out an estimated 55 horsepower and 50 lbs. ft. torque.

Cylinder barrel removal during upper engine rebuild

In this instructional HD video series, Moses Ludel rebuilds the top end of the magazine’s Honda XR650R motorcycle engine. See the HD video how-to on the cylinder leak down test. To see the removal of the cylinder head and cylinder barrel for inspection, click here!

Watch your favorite 4WD Mechanix Video Network features on a big screen or smart television…Go to the 4WD Mechanix Video Network Channel* at Vimeo for high definition video!

*4WD Mechanix Video Network offers free channel programming with HD videos at this magazine site and at Vimeo. Vimeo now streams through Roku, Chromecast, Amazon Fire TV, Apple TV and other popular players!

Not Everyone Wants—or Can Afford—a New High Tech 4×4, ATV or Dirt Motorcycle…In this HD Video, See How Well This 30-year-old Honda XR350R Performs! Part of the 4WD Mechanix Magazine fleet…

Moses Ludel has owned and ridden this four-stroke 1984 Honda XR350R since the mid-‘nineties. The magazine also features a Honda XR650R motorcycle that serves as a dual-sport video filming platform. Both four-valve single cylinder thumpers deliver the performance and reliability characteristic of four-stroke dirt motorcycles. Ride along and see why this “vintage” XR350R is a keeper!