Speedometer
 

Driving along an I look down an the needle on the speedometer is sitting past 100 mph I'm only Doin maybe 75 what causes this an how do I fix it

Try pulling the sensor out of the rear diff, it's right on top. Pull it and clean it out and see if it changes anything.

That's what it was jus a Lil wiggle an it went back to normal

Awesome, easy fix! It is magnetic to keep crap out of the diff, but it's also a sensor, so it will gum up with crap.