No, different bolt patterns.
17"
Not without wheel adapters as the 2006 LJ uses 5x4.5" bolt patter and the 2008 JK uses 5x5" Just google "wheel adapters"
Electronic sway bar disconnect allows you, by the flip of a switch, to automatically disengage the sway bar when driving under 18mph in 4wd-low mode. The front wheels can then drop and compress up to 28% further on Wrangler Rubicon and 33% further on Wrangler Rubicon Unlimited.http://www.jeep.com/en/2008/wrangler/capability/performance/
Yes.
The 2008 Jeep Wrangler Unlimited Rubicon comes with a 255/75-17 BF Goodrich Mud Terrain KM1
Yes
NoNo
The unlimited x is the 4 door version, you would want the Wrangler Sahara or Rubicon.
Not without adapters. They have different bolt patterns.
The stock 08 wheels are 16s, if you use the 17 wheels from the Wrangler or other 17s
search locker bypass switch.
Wrangler, no.