Cracked, they donot have any slip/removable tubes. The part number is 5811 and they have a date stamp of 07 01, thats right, they have been hanging on a wall for almost 10 years. A project planned and never started by the seller. You will have to call the Hooker tech department for all the apps., I know they fix a jeep and D100 Dodge that is what I was told by the tech.. I can't use them on my Cuda so I did not ask any other questions. I'll get some pictures later.