gauges

I recently bought a 2000 Jeep Wrangler. The gas gauge read that it was on empty so I filled it up & the gas meter went up. But, 15 miles later my gas light popped on! I drove about 10 more miles, & it finally went up to just under 3/4ths tank. & it hasn't moved from there & I've gone at least 40...

I'm in the process of fixing/buying a 1978 CJ5. I've got it running and everything works EXCEPT a few gauges: everything in the speedometer display. The speedometer itself, the temperature gauge and the gas gauge do not work. Everything else works. All the wiring seems to be fine and like I...