09 FLHX checked cam chain tensioners , putting the exhaust back together I can't remember if the flanges have lock washers. I checked the manual it does not show one

 

If you mean that would go on the studs under the nuts, no there are no lockwashers

 

Well I did a lot of work to it, after clean up I have 4 5/16 lock washers left over

 

There's lockwashers that go on the bolts of the mufflers to the rear hangers. Did you take the whole exhaust off?

 

Yes I dropped both mufflers I guess that's where they came from. Thanks

I did not give it much thought because the mufflers have nylon lock nuts