I was at Aldi today and they had two pairs that will fit my RRS and two pairs that would fit my Haflinger so I bought one of each.
Now the RRS handbook says to fit the chains on the front wheels only and chains must not be put on the rears.  Putting a single pair of chains on the front is sort of understandable as steering is important but I am not sure how the CDL in the car will react.  
When driving onroad on ice and snow "Grass, Gravel and Snow" would normally be selected in which case I believe the CDL will normally be 'off' until slip is detected when it starts to lock.  So most drive will go to the rear wheels initially but as they will have no grip on ice they will start to spin a little with the cdl then sending drive to the front where the tyres have grip because of the chains.
For those in the know of TR systems, is my logic correct??
The handbook does not say why chains must not be fitted to the rear (under any circumstances) - does anyone know the reason - clearance or another reason?  I am considering getting the one remain set but if they definitely should not go on the rear I will not bother. 
Haflinger - in 4wd I assume they should also go on the front - but not sure on diff locks.  I have diff locks at both ends and am not sure how a car responds with these on on ice - so with chains on the front should I have diff locks on or off?
Cheers
Garry
				
			 
			
		 
			
				
			
			
				REMLR 243
2007 Range Rover Sport TDV6
1977 FC 101 
1976 Jaguar XJ12C
1973 Haflinger AP700
1971 Jaguar V12 E-Type Series 3 Roadster
1957 Series 1 88"
1957 Series 1 88" Station Wagon
			
			
		 
	
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