Am I justified in my frustration?

oldkimmer said
So can I ask? How many members will buy that rear diff as is from go-fish for $350.00? Not 1 member I bet. And I think he would gladly sell it too u. I couldn’t in good conscience sell a diff like that. Kim

The more appropriate question is - who would've bought that rearend as-is without inspecting it?

For $250, he did fine.