WTF my car shakes at 60mph!!!! Options

[mrgrape]

k so recently i put my car up on the lift during auto tech in high school to
identify front and back suspension and check brakes
after that i rotated my tires and put the tires back on
accidently i torque wrenched one too much
after up on the lift, when i go to 60mph my car starts shaking like it does normally at 90MPH
so im like **** and only drivee 50 mph on freeway thus getting honked or stared at....
whats the problem????
is it b/c of tires or something else?

[mrgrape]

k so at auto tech today
i re rotated the tires
and torqued the nuts with one click exactly
and then i took it down a road at 80mph instantly
NO SHAKING
thank u!!!!!!!!!!!!!!!!!!! for all the help !

[shaunrichard]

k so at auto tech today
i re rotated the tires
and torqued the nuts with one click exactly
and then i took it down a road at 80mph instantly
NO SHAKING
thank u!!!!!!!!!!!!!!!!!!! for all the help !

I realize that as far as you are concerned this issue is resolved, but by any chance do you have directional tires? And if so, how exactly did you rotate them? It may very well have been a balancing or uneven wear issue, but the same symptoms might occur from tires rolling in the wrong direction.