The 4-Runner drive train really is obsolete technology. Toyota has great components to place in the 4-Runner, but has elected not to give the 4-runner customers the best they have to offer. They could easily drop the Lexus GX 460 drive train into the 4-runner and probably get close to the same gas milage or maybe better. The GX 460 gets 20MPG on the highway and is significantly heavier. In my opinion, Toyota knows that 4-runner customers have few choices, so they will only make minor changes to maximize their profits. Yes, I am very disappointed with Toyota for not giving us the best technology in the 4-runner, but I have owned many 4-runners with my choice is driven by reliability, not performance factors. If the Jeep reliability goes up, we may soon have a little competition, since the performance factor are really better in the grand Cheroke except for proven reliability.
I am wondering what is different about the GX460 drive train as compared to the 4Runner?
Are you speaking of the all wheel drive mode with the LSD in the transfer case like my 4th Gen has??
G