Just a couple small, yet useful tips for anyone that hasnt done their diff oil yet or anyone doing it again. A piece of 3/8 id tube cut at about 20" or so is perfect fit over the tip of the oil bottle and you cam plug it with the cap piece. It works perfect for getting oil in without making a mess. Also a small funnel is nice to put under the drain plug to keep oil from getting on the top of the skid plate. I used what i had, which worked awesome, and was free but should be easy to come by if you live in civilization. I do autoglass so i have tons of extra tips for the glue we use as it is in a sausage pack rather than a cartridge. Cut to length and sits right in the hole of skid to catch and divert. Any local glass shop should likely have tons of these laying around and would happily give you some if you came looking, just need to be for sausage type not cartridge dispensed. Hope this helps ease the process for someone that may otherwise not want to do this easy job themselves.