my trucks been doing this quite often latley sometimes when I go to start it, it grinds like im turning the key while its running type of sound it just seems to randomley do this we have another chev at work that has this same issue is it well known with this trucks and is getting another factory starter just going to go back to grinding like this one over time?

 

I've never heard of this problem..... I wonder what would cause that

 

mine does this occasionally, would like some insight as well...