What was the bolt pattern for the Cavalier?
Will that 5 lug fit the 5 lug on the SS?

 

The J-body bolt pattern is 5 x 100
Check for that info here

Cobalt bolt pattern is
SS 5x110
all other models are 4x 100

 

It's 5-100
The old Cav wheels will fit the SS.

 

The SS is 5x110, how will 5x100 fit

 

Oopps!! Read that wrong!! HAHA!!

 

Sorry i forgot to say that it won't fit. Well i would sell the wheels on the j-body site and put the money you made on the sale towards either the samething or something even better. Good luck dude
Also i found that info on this site. You could also check your owners manual just to be sure....i think they print that sorta stuff in there.

 

Ahhh. Its only 10mm just use a file

 

thats great