I'm in Florida as well. I've been a huge fan of the Mickey Thompson Baja Boss MT 37's. Much quieter on road than expected considering how aggressive they look. I'm at 31k miles on them and probably have 20k left on them, they've been great. If I stick with 37's on the next round, I'll definitely...
Maybe call AMP? There seems to be some hit and miss with power steps. I have the RSE steps and haven't had an issue but some have had an issue with a constant draw like you. I assume the differences are due to installation but idk.
iirc the XR and non-XR are the same, the only difference in height being one had 33" tries and one had 35" tires. If you have an XR and non-XR on the same tires, they should be the same height.
Kinda sorta related, but way back like 12 years ago, I was lifting my TJ for 35's. I'm not a mechanical guy at all so I was reading forums on what I needed to do and upgrade. I saw post after post saying I needed to swap my d35 rear bc it would snap pulling out of a parking lot if I had 35's...