Originally Posted by phil4x4saph
Some clever peeps here tonight!
My Saph has very little drive on the front wheels (according to the guys at the rolling road).
I'm told thats very common.
Whats happening there?
when it shows up on the RR like that, usually means the centre Viscous Coupling is goosed. On the road you probably won't notice it whilst there is a reasonable amount of grip.
Get it on grass and see if the rear wheels spin
Alternatively, jack up one front wheel and try and turn it... should be very difficult to turn by hand if the centre VC is ok..