Found my dads original 1971 duster!

Shop needs to run the bolt out of the center of the 90 degree oil filter housing, pull housing off engine, then reinstall facing rear ward. I would order a new seal gasket kit cause builder may have skimmed RTV on gasket.
Ok. Thanks a lot. I will tell him that! He said that I can do it when I do the first oil change, but another person on here was saying that he doesn’t think the exhaust will even be able to be hooked up in the location it’s currently in