Check your radius arms for worn bearings / pins, this will give a very weird sensation espeically when cornering.
Steering from both ends !
Yup, had this very thing on my Wifes Mayfair back in the mid 90's. Felt really strange going around corners and it wasnt until i followed here one day that i saw the car crabbing like mad. Two replacement radius arms later and it was all good in the world.
One arm was beyond repair as it had worn through the bearing and into the arm itself. The car wasnt particularly high mileage either, just suffered from a lack of routine maint.