OK, napa appears to show two donut gaskets at different prices:
Exhaust Pipe Gasket - Pipe to manifold
Item#: NGAF17991
Price: $8.49
tax and shipping not included
Attributes:
I.D.:2.962
O.D.:3.710
Width:.539
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Exhaust gasket - with manual transmission
Item#: EXH31622
Price: $11.99
tax and shipping not included
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So which one is it??