Tips for diff drop top nuts?

need to get this diff drop on.
Watched a couple videos and they just say getting to the top nuts suck.

Anyone have any tips to make it simple?

 

I just did my diff drop this weekend. I used an open end wrench and inspection mirror. I rotated the bolt which turned the but until I could slip the wrench onto it, then held it while I zapped the bolt with my impact. I also loosened up the other diff mounting bolts as the bolts would not go through cleanly with the spacers. Once I did that the diff was able to move around slightly to accommodate the spacers and longer bolts. The final step was tightening up everything.