Ok this one will take the most time to do. Passenger side you remove the intake pipe and upper intake cover the bolts are 8mm. Once you have those removed you can move to removing the spark plugs and covers, coil packs. Then you can remove the valve cover bolts there are 8 I believe on top and on the side. Now the driverside is the most difficult to do. I've pulled both of mine a few times there are two ways to do the driverside. 1. Remove the brake booster from the firewall and break loose the brake lines and have to have the brakes bled later or 2. Unbolt the k-member and lower the engine enough to remove the valve cover. On lowering the engine I'm not sure if the engine will lower enough to remove the cover with the brake booster on so the engine may need to be lowered completely out of the car. I pulled the engine out the last time due to pulling the head. I'm sure someone will chime in and give a lil more input. But those are the ways I've done it. You could prolly fight the valve cover off with the booster on but I doubt you will get it off. And what makes you think the valve cover gaskets are bad? Mine had the gaskets that seal around the spark plug hole that leaked oil into the cylinders.
1999 Cobra black with medium parchment interiorJLT CAI, RWR motorsports tune, Pacesetter Longtubes, o/r xpipe w/cutouts, Flowmaster Super 44s, built t56, Kevlar clutch, Nitto NT05R, Ford Racing 4.10 gears, MMR 900 rotating assembly, vortech v3 si, twin aeromotive 340s, aeroquip lines, 80lbs injectors