Where can I get? I saw a post saying they're discontinued, can only get along with a new distributor.
Mopar pn, dorman pn, or other?
Can I use a metal (steel or brass) substitute?
Half the cores I get in the nylon collar is in the engine somewhere. The IPB has the part number. But I throw them out when I get them, at least 50 YO Vinal is a big risk to me. I had metal ones made. Run from the larger 1/2 locking ones they will come loose and also block the oil flow into the distributor shaft.
A few years ago I was able to get them from my local stealership parts counter, and I thought that there was a dorman pn for them as well. Was hoping to find something local.