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Snow Chains on 4WD - front or rear? - Page 4

post #91 of 100
They are called drag chains.
post #92 of 100
Quote:
Originally Posted by slider View Post

They are called drag chains.


Highly recommended for descending steep switchback roads with over 8 inches of snow on 'em.

post #93 of 100
Quote:
Originally Posted by slider View Post

They are called drag chains.

Leave dudes dressing up out of this.
post #94 of 100
post #95 of 100

I live in the land of mandatory winter tires and drive an AWD vehicle.  I do not run chains.  However, if I had to, I would put them on all 4 wheels on an AWD vehicle.  On a 4WD vehicle, which does not run on all 4 wheels all the time, I would likely put them in the back.  I think that the potential for a tail spin is much too great if you put them in the front, because of the greater weight at the front, which is accentuated by braking. 

post #96 of 100
Quote:
Originally Posted by Pacobillie View Post
 

I live in the land of mandatory winter tires and drive an AWD vehicle.  I do not run chains.  However, if I had to, I would put them on all 4 wheels on an AWD vehicle.  On a 4WD vehicle, which does not run on all 4 wheels all the time, I would likely put them in the back.  I think that the potential for a tail spin is much too great if you put them in the front, because of the greater weight at the front, which is accentuated by braking. 


Me too.  That trailing throttle oversteer can be very tricky when you have to brake on a downhill corner.

post #97 of 100
Quote:
Originally Posted by Pacobillie View Post
 

I live in the land of mandatory winter tires and drive an AWD vehicle.  I do not run chains.  However, if I had to, I would put them on all 4 wheels on an AWD vehicle. 

 

And this may void your warranty if you have related issues.  Again,  I highly recommend people read their owners manual.  Only the rear for my vehicle and rim/tire size.  Apparently even the TPS/FTM can be affected by chains and give a false positive for a flat.  What about DTC?  Do you know if you can turn it on?  Leave it on?  Temporarily?  I didn't.  The latest enforcement of CO law had me researching.  I would have never ever considered running chains.  Not with the latest technologies in tires.

post #98 of 100
Quote:
Originally Posted by Ghost View Post


Me too.  That trailing throttle oversteer can be very tricky when you have to brake on a downhill corner.
That's why the #1 rule of driving at the limits of traction is to brake before you enter a turn! Realistically since you shouldn't be going more than 15-20mph with chains on I wouldn't consider that a realistic concern.

FYI the owners manual for the Legacy/Outback says to put the chains on the front tires only. Maby Subaru understands that your front wheels provide all of your steering and most of your braking power too?
Edited by clink83 - 11/27/15 at 11:02am
post #99 of 100
Quote:
Originally Posted by clink83 View Post
 
Quote:
Originally Posted by Ghost View Post


Me too.  That trailing throttle oversteer can be very tricky when you have to brake on a downhill corner.
That's why the #1 rule of driving at the limits of traction is to brake before you enter a turn! Realistically since you shouldn't be going more than 15-20mph with chains on I wouldn't consider that a realistic concern.

FYI the owners manual for the Legacy/Outback says to put the chains on the front tires only. Maby Subaru understands that your front wheels provide all of your steering and most of your braking power too?


Maybe their system is biased to be front wheel drive and trnsfers torque to the rear when needed, so they don't want the front wheels slipping while the rear wheels are gripping.  Still a bad idea to have better traction in the front than in the back.   I guess that's the way they engineered the Legacy/Outback.  Too bad cost concerns over ruled a better idea.  If that's what your owner's manual says, then better follow it.

 

Does the law say you need to mount the chains, or just have them in the car (may have been asked before)?

post #100 of 100
As I posted above, for older subarus with an AT have ~70/30, and MT have 50/50. The center differentials still shift power front to back as needed, so that's not why they say to put chains on the front. Basic physics will always tell you to put the chains on the front of any nonRWD car. Having traction in the rear is worthless if your front wheels have lost traction and you're still going straight in a turn.


Furthermore, Subaru's, like most passenger cards on the road are engineered to understand. The cars will loose traction in the front long before the rear end looses traction. That's why they do so well in the snow.
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