Hey guys just picked up a 96 xplorer 400 4x4 and I want to change the trans case fluid as when I shirt into drive or reverse it shifts hard. So how do I go about this and how much does it need. I'm sure there is a plug under it and a fill on top just need to know how much and what type of fluid. On my sleds I run ATF fluid in the chain cases. Also what else needs to be checked!? I topped off the coolant and hit some grease zerks on the rear axel and front steering. Thanks for any help!