I bought some of those reverse halo gauges for my 99 tibby. While I was installing them I noticed the the speedo didn't fit right and neither did the gas/water temp gauge. You know that little peg that keeps the speedo needle in place when you are at zero? well the hole for that in the new gauge was not in the right spot, it was off by maybe a millimeter(enough to cause problems) All the idiot lights (battery, check engine, oil) on the gas/ temp gauge was blocked by the new gauges because all the holes weren't in the right spot. These are the right gauges, they match what they are supposed to be but its these small things that prevented the needles from moving.