You might call Benz Spring in Portland Oregon. They are also very old...Been in business since the 20's, I think. I contacted Deaver about getting all new springs for my 55.1 3600. They wanted $1250.00 plus tax. I called Benz Spring, after a buddy said he had a good experience, and they quoted me $560 out the door for (4) complete brand new spring packs with new bushings installed. Even with UPS, it's still a helluva lot better than Deaver.