SEMA '09: Mopar Jeep Wrangler Lower Forty "BigFoot" with Massive 40-inch Tires and HEMI V8

Taking the latest generation Jeep Wrangler to a new extreme, Mopar has designed the uber-impressive "Lower Forty" concept for this year's SEMA Show in Las Vegas. The crazy Wrangler Lower Forty rides on massive 40 x 13.5-inch tires mounted on Mopar's 20-inch forged-aluminum wheels while power comes from a 5.7-liter HEMI V8 engine coupled to a Getrag 238 six-speed manual gearbox. The Mopar-supplied Dana 44 front axle and a Dana 60 rear axle, fitted with 5.38 gears and ARB air lockers complete the mechanical upgrades.

In order to fit the massive wheels on the Wrangler Rubicon without using a suspension air lift, Mopar's team created custom front and rear fender flares that are 1-inch wider and are located 4 inches higher than on the stock model.

Other exterior modifications include the chopped windshield frame that gets a 10-degree rake, a one-piece carbon-fiber hood with a Jeep CJ-like power dome and an all-new drop-down tailgate stamped with the "Jeep" logo.

The Lower Forty also gets a roll cage that is tied directly into the frame rails, a color-matched center console and instrument panel and two-tone Katzkin leather seats while the carpet has been replaced with spray-in truck-bed liner.