[Chrysler300] Fine / coarse exhaust studs

["John Grady jkg@xxxxxxxxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>]

Anyone have any idea why they did this ? On exhaust manifold? Later cars just use regular bolts , coarse . Think GM is that way too . Chrysler seems to have had a fascination with fine threads often in strange places like cross member to frame .or carb mount studs .  Maybe an edict from Walter way back . They are stronger and less torque for same clamp force . But strip or cross thread easily .lots more parts , cost with studs . Must be a reason ? 
I remember some had brass nuts on fine ends on earlier  exhaust too .that is good . 
I have several that snapped ,(  they seem to be hardened steel) We got the remains out ,I am  thinking SS bolts , forget all this   . With sealer so it will not seize in head, as the studs do  ; big fan of Rectorseal plumbing  sealer , oil based .
Anyone have any thoughts on this ? 

Sent from my iPhone

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Posted by: John Grady <jkg@xxxxxxxxxxxxxxxxx>
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