The procedure of removing the oil pan in all 4WD models requires the separation of the front driveshafts and front differential assembly, and therefore it is often easier to pull out the engine to gain access to the area of the oil pan. To start with, remove the cover beneath the engine hood and then, unbend the cable which is negative from the battery; additionally, if the stereo you are to steal has an anti theft feature, make sure that you have the correct code. Open the hood and loosen the bolt from the top of the rack and trace using a wrench. In case of 4WD models, it is required to have the front differential and drive axles detached. Pull out the oil pump pick-up pipe and drain the used engine oil and then remove the used oil filter and the flywheel housing cover. Remove the bolts and nuts that hold the oil pan, and gently lift it off If you find that it has become stuck it will help not to force it in a way that will damage the mating surfaces. Take off the oil pump strainer/pickup and the baffle plate, if fitted, at the underside of the engine. Regarding installation, one will have to remove all previous silicone that was used in the installation process, clean both faces of the block and oil pan, and ensure the threaded bolt holes were clean. Ensure that the oil pan flange is distorted and then the distorted part the flattened out. Replace the baffle if the one was removed, check the oil pump pick-up/strainer assembly for any signs of wear and if worn replace the pick-up with the strainer and a new gasket. Cove the oil pan flange with ATV sealant, set the oil pan in its place on the engine block, and use the bolts to secure it tightening them from the center out. Reversing the procedures to the removal process should complete the installation process, refill the oil and replace the oil filter. Last but not the least, start the engine to observe for the oil pressure and leaks.