drive shaft bolts - loose again

[scampbel98]

My drive shaft bolts seem to keep working themselves loose - and the car doesn't get driven much.
I'm planning to grab some Grade 8 bolts, aircraft nuts and washers... any reason that shouldn't work and stay tight?

[DieselSpider]

If the shaft is not assembled with each section oriented to each other the same as when it was originally balanced then it will be vibrating and working the fasteners loose. A worn hanger bearing can also cause this as will worn out fasteners or under tightened fasteners.

[Nanonevol]

How about some loctite?

[ORFORD2004]

You need nut with nylon

[RRoller123]

Is this at the guibo? They alternate facing front to back, maybe oriented incorrectly?

[lglade]

It's been a couple years since I did mine, and as I recall the nuts have nylon locking. Generally these are supposed to replaced after they've been removed once, so like OXFORD2004, I think you should start by replacing the nuts.