Using this front differential cover is easy. First, make sure your truck is turned off and has cooled down. Remove the old differential cover and clean the area thoroughly. Then, install the new cover with the included fill plug. Fill it with the appropriate differential fluid up to the recommended level. For maintenance, check the fluid level regularly. Every time you service the differential, always replace the copper washer with a new one (Part # 114052002 14mm Copper Washer) to ensure a good seal. Keep an eye on the cooling fins and heat sinks, and clean them if they get dirty or clogged. This will help the cover work effectively and keep your differential running smoothly for a long time.