I've got 1984 sierra XR4i and whilst driving in straight line and holding steering wheel still it feels like the car lunges from left to right?
Doesn't do it all the time just now and again and only a bit?
On braking she stays in straight line and also when let go of the wheel just now and again I feel it pull to the left or the right??
The wheels have been balanced recently all same air preasure in them too
Any one got any ideas please?

 

I bet it's almost certainly the TCA bushes, when these go it will drive like a shopping trolley

If it is then polybush them!

Martin

 

As above

 

Nice one guys
It's already got anti roll bar pollybushed and was looking into slowly doing the same to all the bushes as these have smartened up the ride 10fold no more boaty ride
Cheers again I owe yous a pint