7 point socket? What is it?

[Ric]

That's pretty cool! There nice cars. My dads trying to buy a 1978 trans am t top. Their just hard to find.

The 82 had a sun roof and the 1983 was a T Top so was the corvette.

 

[mechanic mark]

Looks like a special lug nut socket for vehicle or truck, anti-theft.

 

[Mower manic]

 

[bertsmobile1]

Being cheap we used to weld a washer over the top of the nut so a socket would not fit over then use a crows foot to remove the wheel nuts.
Stops you doing them up too tight as well.