Check out these nuts. (Problem solved)

RustyRatRod said

We just had a thread pop up on this. Either one of two things. If they were on the intake, they were in the wrong spot, OR you are mistaken and they were on each end (front and rear) of the exhaust manifold. They are correct for that location. They help locate the exhaust manifold correctly. If your Duster does not have them, it should.

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Rusty, you are correct and I had it wrong . They were at either end of the EXHAUST manifold. Are these the only two sets of these nuts/washers on the manifolds, or are there others that I missed? Would I harm anything by simply removing the existing incorrect fasteners and installing these and torquing them to 10 ftlbs.? Finally, could you direct me to the previous discussion of this topic? Many thanks!