1) Considering the OP talking about CORS, I feel in good company
2) The latest ad stuff is absolute garbage. Some of it gets through DNS blocking. Want money? I'll give you $5/year for fancy membership. Shit ads? I'll see myself out.
In my quick Google I came across https://www.superiorengineering.com.au/pinion-angle-measurement that tells the story pretty well. It's not the angle of the drive shaft so much as the angle of the faces of the transfer case output and rear differential
Those with only the soft top and without the hard top provisions would be different. Since you have both, I imagine you have the provisions for the rear wiper/sprayer so you can choose hard top.