EGR Manifold Thread Size/Pitch

[Guggenheim99]

The insulation on my EGR tube was falling apart, so I planned to pull it and put some heat wrap on it since I had plug wires real close to it. When I went to take the lower part off, I noticed the tube was rusting pretty badly, so I just ordered a whole new tube. Was cheap enough. I had previously read that it's nearly impossible to separate the bottom nut from the fitting in the manifold, so I just cut the tube, removed it, and got an impact on the fitting. The entire thing spun out like I had planned. Worked back and forth, heat, and penetrating oil like you're supposed to. When it finally came out, I saw the threads were completely gone on the fitting. It looks like the threads in the manifold are there still, although they look dirty. Shopped around, couldn't really find a new fitting, so the dealer has one on the way. In the meantime, does anyone know the thread specs for the threads in the manifold so I can buy a tap and try to clean up the threads? Also, are those threads in the manifold pipe thread or just normal thread? I really do not want to have to either drill out the hole and helicoil it or buy a whole new manifold. Thanks