one could easily file or sand down a few thousandths with some sand paper. just chuck it up in a drill. you wouldn't want any more than a few 0.0001" interference fit, if any at all.
Yes you could but I was using the offset dowels to correct an alignment and a few thou would just bugger up the offset I was trying to get.
If you just need a straight dowel to replace a missing one then yes I suppose you could polish a few thou off to make it fit.
My point of the post was to let people know that in my experience the standard universal fit dowel pins do not fit properly in a Mopar.