I found the cause!
The lower rear outer control arm bushings are worn out and loose which explains the rear end Fish Tail I have been so used to!
When I grab the rear wheel and twist, the right wheel moves a lot.
Then when I lift upwards on each of the them , they both move vertically and I can see it moving in the bushing.
The manual says you need a whole bunch of special tools to work on the rear end componants. Anyone do these type jobs whith out buying all these special tools?