March 7th, 2023, 05:46 PM
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Member
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Join Date: Feb 2016
Location: Yardville, NJ
Truck: 1968 GMC K1500 305E SWB
Posts: 47
Rep Power: 65
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Re: V6 Exhaust Manifold Bolt French Locks
They are pieces of metal which have tabs that fold over to prevent the exhaust bolts from loosening. Mine are long gone, I've seen them on other trucks and like the look.
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