Welcome to WAYALIFE. As mentioned above under load the axle does rotate upwards and depending on you’re setup, it can rotate quite a bit. When I did the SOA conversion on my FJ60 I intentionally had the pinion 2degrees below the driveshaft angle for this exact reason. I also ran a custom rear anti-wrap bar to limit axle wrap. That is something you will likely want to look at as well if you haven’t already.