Nightmare outing with 210

[andys]

Ran my 210 at Chadderton, it was a nightmare, rear end was very loose, on all corners it wanted to swop ends. Mid corners the car was drifting, it was like driving on polished floor ! Very 'slidey' and if I pushed it would break away.

What could cause this ? Tried many different setups, had brand new mini pins all round. Various people looked at the car but couldn't see anything obvious.

The 210's there were running very different setups, I as many others started on the kit setup but it was a nightmare.

Could the diff cause this ? I thought I'd sorted the diff with the new circlip, but I read a post on here re oils on the parts contaminating the diff ? It feels good and smooth ?

If the setup looks ok & tyres are new, what else could I look at, speedo was on minimum punch, even tried a new sensor lead (yes I was clutching at straws) !