Posted by Don in Missouri [97.64.167.2] on Monday, September 14, 2015 at 12:24:22 :
In Reply to: A way off topic 4x4 systems question (and request for advice posted by Pat H [65.131.32.155] on Sunday, September 13, 2015 at 17:00:13 :
I'm sure the newer Quadradrives are different, but my friend has Quadradrive in his 03 Overland (pictured) and I have an '04 European spec Grand Cherokee, which came standard with that same system. We like them. The hydraulic clutches are a unique approach that does not require any electronics to go from full open differentials to locked in both axles and the transfercase. On-road performance is smooth as long as you maintain good CV joints in the axles and drive shafts. It is a real mountain goat with the hydraulic clutches. The only off-roading drawback I have experienced is in the electronic control of the engine, and not the drivetrain. I nearly got stuck on a wet lawn, because the computer limited RPMs when trying to rock from forward to reverse. No doubt, it was protecting the engine/transmission from over-revving.
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