ya the STS are not the same as the Deville

Sprint also makes springs, that will drop the car to 1.70 front and rear

tech@sprintspring.com is the contact info

Yeah, I posted the link to the springs a few posts up in this thread. If I got any springs, I'd probably go with those, just for the appearance.

I have a buddy on another forum that has a Riv, thats who gave me the idea for the Caddy STB.

Finally got an email back from GMPD. They don't have the spring rate info.

semi off topic: Does anyone know any good rear shocks that could be used in conjunction with the drop springs? I know we can get KYB GR2s for the front, but i cant find anything decent for the rear....

I dont like the idea of using OEM shocks with the drop

I haven't really found much either, other than Monroe, AC Delco, and one other company that i'm forgetting, but nothing exciting.

with a lack of other performance shocks, it looks like im going to be using the Rancho Adjustable shocks for an F-250 modded to fit the Bonneville

Like that idea, eh? Lemme know how they turn out. For now, I'm just gonna go with the Monroe'* in the rear.

i especially like it better than using GM or Monroes, and it doesn't look like it should be that big of a project to modify them