Guages not working

You need to search up one of my rants on dashes.

1--Check and repair as necessary the dash harness connector, the pins get loose

2--Run a ground wire to a couple of the screws on the dash, and run a 1ft or so pigtail for slack to a bolt in the column support

3--You don't have an oil gauge, do you? But fuel and temp that neither work is often a bad voltage limiter. Gauges nuts can also be loose / corroded

You really should just pull the cluster and go through it patiently some afternoon