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Tried looking it up on the Samba, but didn't find anything. With 5 lug Beetles I always made them tight all the way around, then dropped the car and tightened each lug again until it "squeaked". Anyone who ever owned an older bug will know. How this transfers if you have aluminum wheels and different lug nuts I know not...

I am trying to diagnosis a shake in the front end at about 65 MPH.  The wheels don't seem to have a flat spot.  The wheel bearings don't seem to make any noise when loaded from side to side.  It doesn't appear that the either wheel through a balancing weight.   I was thinking about pulling the bearing and seeing if there is any signs of deterioration or scoring on the races.  I have check the lug nutts and they are all torqued correctly.  Any thoughts?

Lots of wheels aren't round which I found out after having your same problem right when I first bought my car.  Then the obvious---see if a good wheel balance helps.  

Also the front alignment could be off so get that checked.  If the bearings aren't noisy and you can't wiggle the wheels when the car is on a lift on a lift  the bearings are probably ok.

Balance and alignment are the most likely culprits.  I'm far from expert but bearings don't seem to be your problem.

When I got my Speedster with 300 miles on it the shake was so bad that I could only go 35 mph for the 250 miles back home.  I have an old timer VW wheel and alignment guy and now my ride is as smooth as a new Cadillac.  Two of my wheels were out of round and the alignment was way off. 

I once drove from Richmond to Hot Springs, Ar with a growling front wheel bearing. It felt and sounded like it was right under my feet.  But the ride was still smooth.  

 

Good luck!

Shake in the front end at 65? You've checked the bearings. Next check wheel runout. Then balance. Then Caster: possibly you need a set or two of shims between the lower front beam tube and the frame(along with the longer lower bolts).

While you're in there, check for pitman/steering arm tightness. a sixteenth of a turn can and will make a difference. Tie-rod ends tight or used and worn? Ball joints?

Lastly, it could be as simple as a steering stabilizer.

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