I know a few of you guys out there may have had them build some solid rear strut mounts for our cars. I e-mailed Lee and he's asking what size spring i have.  
Quote:
Cody,
 
What springs are you using, stock or a 2 1/2" rear spring?
 
Regards,
 
Lee Waldmiller
Held Motorsports
616-893-1433
I am running the Pro kit and AGX combo. But i am not sure of the spring size of the prokit.  Is it 2 1/2"? 
 
 
The 2 1/2" spring is what is found on most aftermarket coilovers.  It is 2 1/2" in diameter.  Aftermarket drop springs are usually the same diameter as stock springs.  If you have the Pro Kit, they are the same diameter as stock.
Nick

Go Go OG Traction!!