Jeeps have long been the go-to Off Road vehicle. From military service to civilian off roading, Jeeps are know for their extreme capabilities. Upgrading your jeep is a very popular past time and the possibilities are almost endless. Hardcore wheelers are stripping their Jeeps down to the frame and tub and engineering their own crawlers by adding aftermarket axles, shocks, drive train, roll cages, and armor. The modern rock crawler is a true statement of man's ingenuity.