swing axle nuts - Guru advice appreciated.

Here's a new one for me; if anyone can tell me WTF, I'd be most
appreciative.

Did the brakes on the Ghia. Replaced rear grease seals, Torqued rear axle
nuts to >215 ft. lbs. Checked and tightened link pins; some slop, planned
rebush for soon.

All's great. Had a little rumble in right rear, figured I'd be changing
bearing soon, but I digress...

Took my son camping. On the road, car began getting squirrely. Whenever I'd
let off the throttle, the sumbitch would attempt an automatic lane change.
Great adrenaline rush, but my kid was with me. Assumed front end...

Got German king and link pins and bushings (and a sweet complete set of
adjustable reamers, in super condition, on EBay, for 80 bucks but, again, I
digress.)

One kingpin simply impossible to press out, but it's still faily tight.
Replaced one kingpin and bushings, and all linkpins and bushings.

Shimmy continues. So, I check the back...

BOTH axle nuts loose. LOOSE loose. Turn 'em by hand loose! Jeez! I could
grab the tire and wobble everything on the splines.

I (re)-torqued them today. That was the problem. Car handles great (or as
great as can be expected of a lowered kiddie-hack with the snubbers sawed
off and the front beam swing arm bearings shot and the adjuster adjusted as
frickin HIGH as it can go yet still the tires and fenders are missing pieces
from where they chose to brutally attack each other... but again, this
digression

Guys, as some of you know, I'm a (licensed and experienced) aircraft
mechanic, and have owned aircooled VW's over 30 years, so I'm no noob. But I
have never had an axle nut show up loose. (of course, I must admit, in the
past I used the hammer-on-special-VW-tool-#halfbaked, and this time I used
an actual socket and a breaker bar and my weight positioned at the correct
calculated point, plus enough to line up the cotter pin)

Can anyone tell me what the hell I did wrong? Are the axles working their
way out?

Thanks guys. And happy easter to all believers.

Chris

59/60 Type I - 6V 36HP and no gas gage
65 Ghia - 1835cc dual Weber 48-IDA, suspension highly modified by someone
who evidently hates VWs.

I don't have attention deficit disorder. As a matter of fact LOOK! A
butterfly!