Mine took ages to get right! As above, I used the powerflex mounts in the original castings and several penny washers as spacers between them and the chassis and it now lines up really nicely. With the original hangars on there was no chance. My only gripe is the RH pipe sticks out 5 mm more than the LH pipe, but it's not the end of the world and isn't *that* noticeable. You just have to stick with it, have everything loose and get it positioned before tightening it all up.