Peterbilt keeps breaking airbag studs

Yes 3 in one day.

Two were on the right rear. One on front right.

First one just blamed it on the plastic base must have been weak.
Second one knew there was a problem but could not figure it out. No one I asked had an explanation.
Third one I got a new bag and leveling valve. Replaced leveling valve never had another fail.

My explanation was while going down the road leveling valve kept adding air until the bag was extended to far under all that pressure and bang it would do as yours is doing.

 

I’ve wondered about whether a leveling valve could go haywire and keep filling until “pop!” Never wanted to do that experiment tho.

 

Just like yours stud would bend or break.

 

I don't know anything about your model truck but there's airbags look awfully High.

Do you have any vibration in your drive line or anyting?

 

Look familiar?

 

Picture #2, are those rub marks on the spring from the tire?