Raise the rear of the vehicle and support it securely on jackstands, ensuring the transaxle is in Neutral with the parking brake off. Block the front wheels to prevent rolling. Remove the driveaxle(s). Carefully pry out the wheel seal using a seal removal tool, a large screwdriver, or a slide hammer and attachment, taking care not to damage or scratch the seal bore or the bearing inside the case. Install the new seal using a seal installer or a large deep socket as a drift, driving it into the bore squarely and ensuring it is completely seated. Lubricate the lip of the new seal with multi-purpose grease before installing the driveaxle, being cautious not to damage the lip of the new seal. Check the differential lubricant level and add some if necessary to bring it to the appropriate level.