[quote=”kkozlowski” post=66450]There’s basically three ways to go about this.
First, you can use a drill bit that is a tiny tad smaller than the circumference of the broken off screw. Drill through the bit stuck in the hole and it should crumble and come out to some extent.
Second, if available, you can weld another screw or the broken off bit back onto the stuck bit and turn it out carefully.
Third, you can try cutting a cross into the tip with a pressure grinder or perhaps a small file. Soak it with antirust solvent and carefully remove it with a Phillips screwdriver. Might work with a flathead too, but you might end up damaging it more that way. You can also cut a flat grove into the bit and use a chisel to get it loose.
All three methods require measured amounts of force, since the A/T is a fairly touchy item on a vehicle.
If you mean the nut on the back that holds the screw to the pan, you may need to take it down and weld it back on, else you will have leakage around any alternative construction.
Good luck mate[/quote]
+++++1 🙂