Custom tube chassis building and 350 small block mods with propane injection are featured in part two of Ian and Jessi's trail rig that's built almost entirely from used parts lying around the Tech Center. Plus... fire and water don't mix when Ian burns up someone else's mud racer during a trip to the Mud Bash in Smoke Run, PA!

The Bottom Drawer Buggy is finished up in this episode and taken out on the trail. Tech includes custom 4 link design along with rear wheel steering. And on the CORR track, no one has made more trips to the podium in the last 10 years than Carl Renezeder. This champion Pro 4 driver with his rig and team are profiled.

The first ever airbag kit for the '08 Super Duty is installed, along with a trick custom audio/video system to give you street guys your "fix". Plus... Henderson, Nevada was on the global stage with the W.E.ROCK World Championships, and Xtreme 4x4 was there!

What is old is new again, when Ian and Jessi make a true trail truck out of the new Toyota FJ with 6 coil overs, beadlocks, lockers and more. Then their back-halved Saggin' Wagon Land Cruiser is finished off. Plus, 3 hours non-stop through the woods, rivers, jumps are what Casey Illinois endurance racing is all about! Even the eventual winner breaks down before the finish line!

Two decades apart, and vastly different our '85 Landcruiser and '07 FJ Cruiser are readied for the trail. See how full air lockers and an off road lift improves Toyota's new FJ in the field in this hardcore payoff. And in our event of the week - they don't call it Axle Alley for nothing. We're off to the Arizona desert and one of the West's most bone crushing trails.

This is a first, when our team builds the same truck twice - the new popular 4-door Jeep Wrangler! In stage 1, we turn an already capable JK to an even better on & off road trail rig. Stage 2 - we go hardcore, bigger lift, axles, and more - to make this hot new Jeep a dedicated trail monster! Plus in our event of the week, we're off to Camp Jeep in Elkhart Lake, Wisconsin where Jeepers from all over come to gush over their beloved vehicles!

Xtreme's most popular build to date - the Cheap Jeep (1982 Jeep CJ) returns. And the last remaining weak link is upgraded in the form of beefier and stronger off-road axles. Plus, axle tech - everything you wanted to know about axles will be discussed in this show. And in our event of the week, some top off-road shop teams compete in a Midwest challenge to determine the best of the best in this two part "Top Shop Challenge"!

Xtreme teams with the CORR series to build their own Pro II trophy truck! Tony Vanillo, America's premier builder provides the chassis, and we do the rest! This will be part one of a step by step building adventure, utilizing the world's top off-road technology in a series that cannot be missed! Plus in an Xtreme exclusive, highlights of the Jason Baldwin Memorial Cup winner take all race. Also featured... how track conditions affect CORR teams choice of tires before a race.

Ian and Jessi continue in part II to take their '95 Jeep Cherokee XJ and transform it into a spec class Baja racer. These buggies run Best in the Desert, and SCORE competitions. New rear end... GPS gauges, off road lights, everything you need to head into the desert. Also, a look into the Pro Truck class and the Steve Staats family of racing siblings.

Jeep's new 4 door Wrangler gets part II of our makeover, followed by an Xtreme trail test at a local off road park. Plus, Pennsylvania is known for two things... cheese steaks and mud running! See how the young guns take on their gray-haired counterparts at Muddy Run Raceway.

The true finale of this ultimate trail/tow vehicle when our team buttons up the little things, then takes this beast and its gooseneck trailer out for its inaugural run. Plus, in off road circles, Rod Hall is a legend. See how this father and grandfather is passing his passion and legacy along to his family.

The Pro 2 race truck build begins, as safety measures are discussed along with detailed roll cage design, gussets, and most importantly brakes. Plus.. short course endurance off road racing from Central Illinois.

The Bottom Drawer Buggy gets new axles when dual Rockwells are shaved, reduction housings modified, and pinion brakes are installed. Then this budget tube buggy is taken out for one of our most hardcore payoffs ever!

The Pro 2 trophy truck gets its high-end suspension today, along with a full hydraulic steering setup. Plus we go through the absolute shop necessities you'll need to start your own fabrication shop.

With the ultimate tow rig and trailer built, there's only one thing to do... test it on the highway, and on the trail! Plus, Australia's best crawlers come to Las Vegas to show W.E.ROCK how it's done.

It's the latest idea in off road axles: combining the benefits of the Ford 9 inch and the strong Dana 60. Ian takes us through step by step, on how to plan, measure and build this bulletproof axle combination. And in our event of the week, we're off to Moab's Jeep Safari, and some of it's hardest most legendary trails.

In this unique build, our team will design and build a '91 Toyota mini truck for Xtreme off road capability. Solid axle swap, bob and dove tail the rear end are just a few how-to elements to this episode. Plus, it's off to Arizona for the Tucson Trail Dust Days trail run, and Jessi returns from her long absence.

Final installment of the '91 Toyota mini truck transformation into a off-road mini beast! SAS, new suspension, small block V8, gearing set up tips, and an awesome trail payoff are all showcased!

In part four of our CORR Pro II race truck project, we'll build up of our killer 700+ horsepower 434 small block. Plus, Rhinos aren't just for deer hunting anymore. We're off to SOCAL for the latest craze - UTV Cross, where stock utility vehicles are pumped up and taken the the motocross track to race!

Part one of our Suzuki Samurai tin top build, where a daily driver is transformed into a pint-sized hardcore 4x4. First Toyota axles are installed front and rear, along with a custom four link suspension. A build like this can be done on a budget, and our team keeps the costs low. Plus in our event of the week, we head to Las Vegas to see how competition drivers cut their teeth in the stock mod class before they hit rock crawling's elite.

Part two of our Samurai build up includes tearing into the body big time! Now you can back-half a Suzuki and tube the rear, or you can try and keep the structure intact. That's what we're going to do along with an exoskeleton. Check out our welding tips in this episode also. In our travels, we check out the famous Moab Rim Trail in Utah.

One of our favorite budget projects returns for beefier axles. See how a Ford 9" and a Dana 44 turn a competent crawler into a trail monster! Plus, there's more to a Truck Fest than just monster trucks and bikini contests! Watch our crew give away almost $10,000 of free stuff at the inaugural 4 Wheel Parts - 4 Wheel Drive Hardware Truck and Jeep Fest in Canfield, OH!

In this special edition of Xtreme 4x4, Ian and Jessi take you to Baja California for the running of the 39th annual Baja 1000. We follow three build teams who, along with Dirt Sports Magazine decided to put charity above competition. Three Stories from the Heart documents the experiences of the Full House race team from LA County Fire Station 116 and their class 11 bug, Herzog Racing's Pro Truck, and the Dirt Sports Project Elf class 11.