Running the correct length shock in the rear of a Jeep Wrangler TJ, LJ, and YJ can be extremely difficult. It seems that either the frame or the gas tank is always in the way at some point during articulation.
Resolve your shock issues and run a longer shock by using a TNT Customs Outboard Shock Kit. This kit allows you to french the shock body into the frame and move the upper eye of the shock approximately 4 inch higher in the chassis. New lower shock mounts are included to fine-tune your shock travel.
Note: Welding is required.