I have a 85 silverado and the light that shows how fast you are going only lights up one side so you can't tell how fast you are going at night unless you are doing 65 or better. how hard is it to replace the dash board light and how would I go about it

 

your have to pull the cluster to replace the bulbs its really not too bad, once the cluster is out your find some little black ***** on the back of the cluster they are the bulb holders turn them like 1/4 turn (as far as they turn) and pull them straight out put a new bulb in the holder.