I was suspect of the ebay starters , but that doesn't mean there all the same .
I ended up getting a used one from a member .
A good one should last at least 50,000 , but you half to compare apples to apples , new , used , rebuild , then theres put what ever into a used truck , I think that a new part in a new truck will last the longest , then any combination of above parts and trucks will last in descending order .