55VickyAbout 3 years ago I added new leaf spring and shocks on the rear of my "56 Vicky and I got them from JAMCO. I had 3" lowering blocks before the new spring but was happy with the stance after adding the new springs. I would say that it lowered it about 2". I was very happy with JAMCO, althought I have heard lately that they are hard to reach and very slow on delivery.