Seems like GAmes is willing to help out.
My kit from Dodge had the Seal, plastic sleeve (goes between inner seal and crank shaft) metal spacer.
My mechanic and I put the seal thru the backside of cover. Front of cover facing down with spacer in place. Used big impact socket and hammer to put it in place. We could pound on the spacer also. Don't forget to put some sealant on outer edge of seal. I forgot to do this.