Yesterday after having the track rods off ,I was adjusting the front toe when I discovered that the rear axle is offset approximately half an inch to the right side . Nothing appears to have moved when I look at the u bolts ,unless it occurred a very long time ago, and the panhard rod fits tension free. I doubt that slackening the u bolt and prying the axle over will yield much movement as the locating bolts in the springs will restrict it .
I have yet to check that the springs are parallel and equidistant in relation to the chassis rails. Is there any scope for adjustment by shims? at the spring mountings .
Dave