Originally Posted By: edwardh1
how does the toyota highlander awd work? - says it (2 rear wheel drive) comes on when needed???????
From what I can find, it uses a NP/NVG149 transfer case which uses a viscous coupling to give you AWD.I used to daily beat a '95 Legacy Scooby wagon around town a few years back. The only thing that stunk about it was I was the only guy that would show up on the engineering campus on time for work. Nothing much is more spooky than being the sole guy in an empty engineering hall and silent machines.
I have a brutal, sharp as a bowling ball AWD chevy sport truck now. She's an oldie. If I'm not completely off my game, she's got a limited slip rear, plain old diff in the front, and a viscous clutch center diff embedded in the transfer case. Nominal operation sees a rear biased 37:63 front:rear torque split in non- slip conditions. She can go 50:50, the manual says to just keep the throttle even as it transitions, but it will get there in a fraction of a second. No bump, groans, etc. Just sudden traction if the rear slips as the fronts start to pull harder.
I cannot seem to find any data on what sort of AWD system it is. The manual isn't a clue. It seems that the '03 Silverado SS has fallen off the internet radar except for old motor-trend/week reviews.
What sort of AWD system is she packing? She lacks traction control, Stabilitrack, has ABS... but I'm not aware of any time she used it to brake a slipping wheel. She just digs in and goes.
lol. Maybe in sunny california.fwd with snows mounted all four corners. ill take that over awd
That is more information than I've been able to scrub up. Thanks for that bit of data, I'm learning about the system as we speak. Thank you!From what I can find, it uses a NP/NVG149 transfer case which uses a viscous coupling to give you AWD.