There's a drain plug and fill plug usually located inches from each other. Just do as the plug says. I first open the fill plug and stick my finger in to see if its low, and make sure it's not seized; if you can feel fluid it's full. Drain the oil into a catch pan and then fill the case until oil starts to drain back out. You may need a pump to get the fluid into the fill hole. A simple hand pump will suffice. Make sure you get the proper fluid and an adequate brand.
1998 Bright Atlantic Cobra - 3:73's, BBK ls, Pro 5.0, 96 Cobra STB, Borla XR-1 Catback, Custom Catch Can, Spec clutch, MM Firewall adj, FRPP wires, RSD, Spoiler delete, 245/275 BF Goodrich g sports on chrome 95 cobra r's
1998 V6 Mustang : SOLD!