My target is to take an EA 4WD D/R 5speed gearbox,to put a LSD on the front and then to cut and plug the rear end of the gearbox,following the advices of SUBARUGEARS.

 

http://www.subarugears.com/Casing/Casing.html

 

So i'll have an EA  FWD 5speed D/R gearbox with LSD,

Where I could find some D/R 5speed AWD(push button) transmission?

 

Have all the AWD transmissions central slip differential?

 

Is it possible to change from High to Low on the fly(fast range change) or must be silky change?