yep you can do it this way to they make a kit for harleys you can make a tapper seat that will center on the 45 seat angle and some small thrust washers on the nut side that you draw with if you want to put them in this way to .i put some wd 40 and drive them in by hand i have seen part of the head bust out with a air hammer you have a better feel driving them by hand for first timmers . but there many ways to do this .you will just have to pick one. i like to file some tapper just on the front part only put the guide in a drill or lathe and file it to keep it from getting started cocky