i am working on my uncles truck. It is a 88 1500 5.7 350 4x4 regular cab chevy. It has about 180,000 miles on it. And every once in a while when you are driving the gauges will jump around. Do you gys have any idea what it could be?

Could be bad Ignition switch or bad connection at the battery--Does this happen when you hit a bump? or when the road is smooth.Gauges all jumping at once usually means an interruption of electrical current. Hope this helps.

it does it just when you are driving down the road. So what should i look for? burnt wires and stuff like that?

You are losing power to the gauges-Look for a bad ground or a loose connection somewhere-Probably not any burned wires. Maybe bad connection at back of instrument panel. Electrical problems are the hardest thing to fix on any vehicle. Good luck!

ok, thanx alot, i will look and give you a update.