MStudt
official vendor
That's a cool setup. About to install an icon extended flex setup in my brothers 4th gen. According to guys in that forum disconnecting front don't do much.
I did a little rutted section with my front connected. I have to say. Traction up front was night and day different. Connected it literally felt like an extra 1000lb on each tire as they drooped into the ruts. I might keep them connected on trail from here on out. IFS seems to work better connected.
The front being disconnected has it's advantages and disadvantages. With the 4th's you need to remove the entire sway bar or build something like the above picture to disconnect. The sway bar design is way different than ours, and you will damage a CV disconnecting. I know this from experience, and that's why I won't sell front disco's to 4th and 5th Gen owners. I always tell people that if you have the right links you'll be amazed at what our 4runner's can do.