Change the transmission fluid and filter if it has not been done and use the Mercon 8 fluid which Ford recomends.The pan gasket is reusable and do not throw it away.Check the hoses and the surpentine belt also and replace if needed.
Do you have the Maintenance Guide for your car? If so, the items to check and/or replace will be itemized in that guide. If you don't have the guide, you can download it here.
Just had the local Midas do it for my '02 (yes, 60k They had already done the trans fluid, I should have done the air filter myself, but they did that + spark plugs, and fuel filter. The cabin air filter (if equipped) was on there too, but I am also short on funds. Edit: Forgot to mention, this is on the "vulcan" ohv, not the 24v duratec
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