Yes, and it's far better to cut the tab than to break the exhaust stud trying to get it out. 

Stuart

-----Original Message-----
On Behalf Of SDF ( aka ;jim lahey' - Scott )

take it apart first ..I strongly suggest.
that way you will know exactly what's what when you go to get parts.

if there is a lot of corrosion...
2 things come to mind...
start spraying exhuast nuts/ studs with penetrating oil right away ..
and frequently.
they secure the upper tabs (they'll work just fine with only one upper tab btw ) and get badly, badly rusted in my experience.

possible rusted-through pushrod tube if you live in that kind of environment.