06 front wheel drive 2.4L 4cyl sounds like it is leaking around donut gasket. Anything special I need to do to replace? Looks as if most of the work is from under the car except maybe bolt to get shield off and it looks like I will need my inverted hex sockets. Any pointers appreciated t/u...

 

Update not the gasket it's a cracked exhaust manifold due to bad design...