rear diff question

[speedy ms6]

So I started noticing a vibration coming from the back of the car at speeds over 35 to 40 mph. I'm almost 100% sure it's the tires and i'm getting new ones this weekend but it did get me thinking about the rear diff. I had read on here somewhere that the rear diff mounting bolts can come loose from time to time and need to be re-tightned. My car has 45000 on it so i figure it can't hurt to check em. Anyway's my question is does anyone know what the mounting bolts are saposed to be torqed down to?

[UIspeed6]

when i had vibration it was my rear diff and pass side axle than front transfer case lost my warranty and i am withoutthe car for 3 months just got the car back and my cluth went so good luck i hope is just yr tires

[speedy ms6]

That sucks man. I don't know what i'd do without my car for that long. Luckily it was just my tires though. Got em changed out for fresh ones now it rides smooth as silk. Good luck with your car though