Have you ever driven a newer Haldex system? They work excellent. We have 5 Haldex and 2 Torsen in the fleet.I know this is old but the OP is really good and pretty accurate in terms of AWD system rankings. Years ago I didn't know much about different AWD systems. I think the best system is anything with a torsen center/lockable diff - LC/4Rummer Limited/Lexus/Audi.
Auto 4wd came in handy today as we drove through some heavy cells. 4auto in the Colorado works quite well.
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