I understand what you are saying I did not name any dealer in particular and yes I did check my car b4 it went in It's like they don't listen to me ... in the past I had to take it in for a diff prob (was making noise) they told me it was fine the first time ... 2 days latter the clunking still there I told them again same thing fine third time ... and get this it needs a new 1 ... in the space of a week .... they had the car for 2 weeks ... I rang them ,,,Whats the go? the shop they sent the diff to is not the one they normally use ...WTF... where is the new one??? so you tell me should the mud stick????