Adjusting the Pan Hard bar?

[Draggn66]

Ok I did a few searches and couldn't come up with anything. I've got an adjustable Pan Hard bar on my 71 with a 2/4 ECE drop. I'm going to put 1" blocks in to drop the rear just a bit more. What do I need to do with the Pan Hard bar to keep everything correct? Is it just a matter of disconnecting it....installing the blocks.....then reinstall it by turning the eye to line up with the bolt hole on the diff? Or do I need to do some measuring? Any input would be great. TIA.....