Not sure what you mean by the "stud"...are you talking about the delivery valve body? The threaded part that goes into the IP or the cap that holds the hard line to it?? If the threads on the IP are stripped you may be in some trouble, but the DV itself is available as a replacement part.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz