I have a set of barely used BDS 2.5" springs for a 1974 CJ. Should fit all 1955-1975. It is this kit plus 4 shocks: Only 2 trail rides and a few hundred road miles: http://www.quadratec.com/products/16110_002.htm
The springs are attached to a set of 1974 CJ axles. Dana 44 rear and 30 front 3.73 ratio. The rear is in good shape. The front just started to leak out of the pinion seal pretty badly but otherwise is good. Even new brakes
Great to swap into a pre-1976 CJ. It's all together so just 8 bolts and you're running.
$600 for everything and I'll include a set of uninstalled add a leaf I bought for the front but didn't get around to yet. With the V8 and winch, it was a bit lower than the rear.