Thanks to all those that have made comment.I make the following comments ,the fully restored car has thousands of dollars poured into it .On the front end it has all threaded pins and bushes replaced in the upper and lower control arms,(just because we had them )also king pins and bushes plus any sus. tie rod ends. The alignment has been done to the book and the radial tyres are running at top preasure. This car drives beautifully at 10 ks and above but is a absolute bitch at parking speed in confined space .Our 1948 Roadmaster is the same and Buick must have worked it out them selves or had a lot of complaint because the 1949 had a lower ratio steering box fitted .I might also add that our 1939 and 1940 40 series do not have this problem We have not had a problem steering any other Buicks we have had 1916,1924,1926 1929 1930