On planet Aridia, go to the place where there is an island-like place where it seems you cant get to(surrounded by mud) check your map. NOTE: you may need the gadget that shows opened areas on your map- in green. after youre out of the pit-like place with the 3 big pipes and pyrociter things, stop. jump twice through the mud to the corner. then, with your thruster pach, jet to the land. once there, turn left and go to the old dump truck. the gold bolt is inside!! TO HELP: the place you need to be is the largest place on your map, probably in green. P.S. how do you use gold bolts??