Quote:
Originally Posted by Reiver
The dilivar studs on some 3.0's break................. allowing for corrosion to set in on the exhaust studs.
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If most equals some then you are spot on. Dilavar was introduced in 1976.
Exhaust studs do not shear - they twist off. Dilavar studs get corrosion pits in them and heat cycling causes them to shear across the bolt diameter.