Thanks for the picture. I think that the number 2444242 is the old number and the other part# is the newer. SO it's a replacement for the old one. I hope slantsixdan can fill in with some knowledge.
Today pole for the bumper jack showed up. This is the way it looked back when it was new. I'm really satiesfied with this one. Vent smoother then I thought.
The washers for the resonator turned out great too in silver zinc.