Just got a 2017 Pro4x with 32k miles and it has an oil leak so I brought it to my dealer and they are taking a look to fix under warranty.

They said someone stripped out the threads on the bolts and they need to replace all of them ($13/ea and $8/ea) and re-tap some of the holes which will take a few hours at shop rate. I told them just leave the skid in the bed and I'll look at it because I'm not paying $137/hr to tap holes.
He said most likely whoever did the last oil change put them on too tight.

Anyone experienced this? The bolts looks okay to me - aren't they usually tapered at the end? Or are they missing threads?

Thanks