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Re: Replace exhaust manifold bolts?
Hey thanks for the replys. I do have 4.11's in the rear, and the truck has had some seafoam ran through a couple of tanks of gas. i have been wanting to get a black bear tune for the truck, but money is one of the issues putting that on hold, plus i don't have a pc so i think that i will have to go with the standard tune offered.
I was expecting to the truck to have more power and pull our little trailer with a little bit less effort. One thing that dose bother me, is that even in the tow haul mode, the truck is slow or lazy to down shift out of OD, unless i really put the foot into it.
With these exhaust manifold bolts, do they become weak and break on their own. Or are they likley to break from removal or re-titening?
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1970 GMC K2500 aka MaTeR 
2007 Chevy Silverado 1500HD Classic
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