Smoked a bearing in the rear end

[Tony Conti]

Earlier this spring I was driving the car and gave it the beans in first and then shifted into second. As I got off the gas there was a loud ass whine. I drove it home and it was fine the whole way minus the whine on decel. Not sure which bearings are bad or not but regardless since it wasn't catastrophic do you guys think I should just replace all the bearings with this?
https://lmr.com/item/M4210B2/1986-12-Mustang-Ring-Pinion-Install-Kit-M-4210-B2

Or replace everything with these?

https://lmr.com/item/LRS-4209FRC-K/Mustang-88-410-Ratio-Rear-End-Gear-Kit

https://lmr.com/item/LRS-4700A/Mustang-Ford-Racing-88-rear-end-Traction-Lok-Clutch-Kit

I already have 4.10s in it.

I've been remodeling a house I bought, almost every day after work for a few months so I just haven't had time to look at it yet. Almost done and moving in soon so I'll have time to do this now.
Just wanted to get some opinions on it before buying anything.

 

[GriffX]

I would first check if the pinion nut came lose.

Reargading your links, wasn't the pinion changed from 2011+ ?

 

[Tony Conti]

Not sure about that but mine is an 09 so I'm pretty sure I have the right stuff there.