• Jeep Lower Forty Concept by Mopar Underground

Not much has been heard from Jeep in recent months, but that hasn’t stopped the brand from showing up at SEMA to unveil the Jeep Lower Forty concept. The off-road vehicle, which is based on the Jeep Wrangler, was fine-tuned by Mopar Underground and is powered by a 5.7-liter HEMI V8 engine with a Getrag six-speed manual transmission that uses a Dana 44 axle in the front and a Dana 60 axle out back with both being fitted with 5.38 gears.

Jeep Lower Forty Concept by Mopar Underground
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Jeep also took the liberty of adding mammoth 40-inch tires to the Lower Forty concept, which was done by taking away a number sheet metals from the vehicles and increasing the width of the fender by an inch and raising it up four inches higher to make room for the 40-inch tires.

Jeep also included a slew of other features for their Lower Forty concept, including the addition of a carbon fiber hood, a chopped windshield, a custom bikini top, and a new rear tailgate.

Additional features include a carbon fiber hood, custom bikini top, a chopped windshield, and a color-matched interior with Katzkin leather seating. You can read more details after the jump, and we have plenty of high-res photos in the gallery below.

Press Release after the jump.


Jeep Lower Forty Concept by Mopar Underground
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The Jeep "Lower Forty" takes the Jeep Wrangler platform to a new extreme. The vehicle is equipped with massive 40-inch x 13.5-inch tires mounted on Mopar’s 20-inch forged-aluminum wheels. Mopar added aggressive wheels and tires to a stock, two-door Jeep Wrangler Rubicon without the use of a suspension lift. The team’s goal was to achieve added ground clearance without dramatically altering the vehicle’s center of gravity. The team removed copious amounts of body metal in order to provide room for 40-inch meats. Three inches are chopped from the windshield frame and a 10-degree rake is added.

Custom front and rear fender flares are 1-inch wider and are located 4 inches higher than a stock Jeep Wrangler. A new one-piece carbon-fiber hood with a Jeep CJ-like power dome and an all-new drop-down tailgate stamped with the "Jeep" logo are added to complete the exterior design.

Jeep Lower Forty Concept by Mopar Underground
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On the interior, an all-new roll cage is neatly integrated into the body tub and tied directly into the frame rails. A custom made bikini top from Bestop keeps drivers in the shade. The spare tire is relocated to the cargo floor and a custom cargo rack, supplied by Poly Performance, holds extra gear. Once all body modifications were completed, the exterior received a fresh coat of Red Eye No. 3 paint, a custom color developed by Mopar.

Custom touches throughout the interior include a color-matched center console and instrument panel. Seats are re-covered with Mopar’s Katzkin leather package in a two-tone scheme. Replacing the carpet is a durable, spray-in truck-bed liner. Rugged Mopar floor mats complete the theme.

Mechanical upgrades came directly out of the Mopar catalog. The Jeep "Lower Forty" features an all-new 5.7-liter HEMI® V-8 engine and a Getrag 238 six-speed manual transmission. Powertrain installations were handled by Burnsville Off-Road using an AEV 5.7-liter HEMI V-8 conversion kit.

The Mopar-supplied Dana 44 front axle and a Dana 60 rear axle, fitted with 5.38 gears and ARB air lockers, were assembled by Dynatrac and revalved Bilstein shocks maintain vehicle stability on rough terrain.

Jeep Lower Forty Concept by Mopar Underground
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Kirby Garlitos
Kirby Garlitos
Automotive Aftermarket Expert - kirby@topspeed.com
Kirby’s first exposure into the world of automobiles happened when he caught Knight Rider on television as a five-year old boy. David Hasselhoff didn’t leave much of an impression on him (that happened later on in Baywatch), but KITT certainly did. To this day, Kirby remains convinced that he will one day own a car with the same ‘spirit’ as the original KITT (not the 2008 monstrosity). He doesn't know when that will be, but until then, he’s committed to expressing his love for KITT, and all cars for that matter, here at TopSpeed.  Read full bio
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  (807) posted on 02.8.2010

I’d say that there are still a lot of people who are into trucks like this Jeep. Jeep cars like the wrangler models are very useful and they last for a long time. I just love the v8 engine for this concept Jeep. I have one of my own and every once in a while, the guys and I take it when we go camping or just visiting the beach.

  (814) posted on 12.28.2009

It’s somewhat hard to have that kind of concept not for the design, it’s about the target market of this vehicle is that low and I think it’s not possible to continue this concept on that matter. Just to boost up the popularity of this one, they’ll need a professional tuner for this like Mopar Underground to continue the venture of this concept.

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