I just did mine today. I used a 1/4 drill bit and drilled a hole in the middle of both endcaps exposing the metal pin in the center. Then I used a smaller drill bit to push the pin out - you could use anything smaller than the hole. The pin slides out easy.
After that I took a pair of all-purpose nippers and snipped the plastic casing right next the the rubber on the inside of the housing. Pull both plastic ends out and the rubber falls out too.
There's no damage to the plastic clips you keep doing it this way.
2013 JKU Sport, billet, auto, 3.73, LSD, 315/75/16 Duratracs on MB 72, 10A springs, Bushwacker flatties
Sold - 2005 TJ, red, auto, 3.73, 33" Duratracs, 4" lift
Ice storm casualty in 2007 - 2003 TJ, green, auto, 3.73, 33" Duratracs, 4" lift