This ’83 Jeep Scrambler came in for an off-road upgrade. We swapped its 6-cylinder motor with a Chevy 350, upgraded the cooling system and installed a March Performance serpentine drive belt assembly. We also installed a new fast fuel injection system and air conditioning unit. Next, we rebuilt the transfer case, drive shafts and suspension. We also upgraded the clutch and pressure plate assembly before installing a new exhaust system and ceramic-coated headers. After replacing the rear axle bearing and seals, this Jeep was ready to conquer more trails.