Thanks raven.
I jacked the back up and it ran smooth after the new shocks went on and wheels were balanced. and they are round.
Would do no good to put the balanced egg back there to spin it. It is perfectly balanced on the computerized machine and the egg/out of round would only come into play if it was traveling along the ground at speed.
All 4 rims are good and straight, no problem there.
Back axle bushings are old, but are tight.
All front steering linkages are tight and the box is good. drives with 1 finger. Excellent for what it is.
I highly suspect the eggy tire .. it's just too much for the shock to handle.
It starts right at 50couple mph, and lets up over 55.
It's really smooth at 95 ... he he he
just kidding, but, there is no gearing up or down in this thing at 50 mph, there is no 4th gear and to drop to 2nd ....... would be interesting. (no seat belts)
I have depressed the clutch and the shaking continues until it slows to under 50 though. As I said, I do have a spare pair to try out. They are holding air but are quite old. I'll hang on and anticipate the worst.
Thanks.
Thanks