My last Jeep was a brand new 1973, J2000, in 1973. Like most vehicle manufacturers back then, almost no warranty because they built a lot of ill fitting slopped together junk. I traded it off for a 1964 bug. Then I questioned my sanity because the bug was also falling apart. Now I'm trying to get the gages to stop flickering in my 90 YJ. Other than wind noise I'm satified that my sanity has been restored. How many places on the 90 YJ can the grounding be loose or just worn out? I've heard it's a common problem on used Jeeps.