Need new rear springs for 63 Grand Prix--not sure where to start?

[Guest GranderPrix63]

 

 

So I bought this car...but it needs some help in the rear right away...I am totally new to this, and thought I would just go to Amazon and get springs. Turns out, it's not that simple. Anyone have any recommendations on where I start to find parts and stuff for my car?

 

Do I just measure the springs and try to  get something identical?

 

[pont35cpe]

Eaton Spring Inc.  313 963 3839   www.eatonsprings.com

[GARY F]

I put all new springs in my 63 GP about  14 yrs ago but I forgot where I bought. As above try eaton. i replace front also because it was down two an three quarter inches.

[poci1957]

Supplier Ames catalogs them and looks like only $99 a pair plus shipping and rubber insulators, see www.amesperf.com