Antone have CSS springs. How do you like them? ride? sag? What spring rate? I'm thinging about replacing my superlifts with 4" CSS springs. I have Bilstien 5100's and might upgrade to 2.5" kings too.

 

I'm not certain but I think my springs are CSS, but I got them through Don Thuren. If you want Kings also then give Don a call and tell him what your looking for. I have a set of Thuren-spec springs and King shocks and love them.

 

I've had them for about 3 years now....little if any sag. Very happy with them.

I run a 360lb coil rate, which might be a tad soft for the Bilstiens. You can run a light rate with the 2.5's IF you have them valved properly.

I'd recommend you stick with a 400-420# rate, it'll work well with either shock.

Call Don Thuren or Sage Carli, either can get you set up.