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| jmartynuska | Cat-to-Y pipe flange bolt | ||
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Any one off hand know the bolt dia, thread pitch, length of the bolts that attach the y-pipe to the rear of the cat on an '89 L98 car?
Cut the cat-back off to facilitate removing the diff. I'm sure by the time I get the remains out with the hot wrench and vice grips they won't be in the best of shape to get a size off. TIA, Jeff |
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Posted on: 2011/2/27 5:19
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'89 Z51/'02 Z06 45/145BS NER SCCA |
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| bogus | Re: Cat-to-Y pipe flange bolt | ||
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Grand Imperial Pooh-Bah
 
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M10x1.5x50
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Posted on: 2011/2/27 7:16
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| Matatk | Re: Cat-to-Y pipe flange bolt | ||
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I think Andy is right.... But if your car is like mine, the bolts have been changed to SAE over the years, so it is what it is.
As far as cutting off the catback, is it that corroded? the front of the cat is a slip fit and the rear flange is just two bolts. No luck loosening it that way? Matthew |
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Posted on: 2011/2/27 12:41
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| Matatk | Re: Cat-to-Y pipe flange bolt | ||
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Here you go:
11515770 BOLT, HFH (M10X1.5X50) 9.8 PZOR http://www.compnine.com/index.php?u=1 ... majorgroup=03&grouptype=B  |
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Posted on: 2011/2/27 13:15
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| bogus | Re: Cat-to-Y pipe flange bolt | ||
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Grand Imperial Pooh-Bah
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I got the info straight from the parts fiche...
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Posted on: 2011/2/27 17:33
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| Matatk | Re: Cat-to-Y pipe flange bolt | ||
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Quote:
I wasn't questioning your correctness, Andy, just giving a link  |
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Posted on: 2011/2/27 20:27
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| jmartynuska | Re: Cat-to-Y pipe flange bolt | ||
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Guru
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Thank you gentlemen for the reply. I'll order me up a couple of bolts.
The bolts at the flange were rusted enough and heads rounded off enough that it was easier to cut the bolts and get a hold of what was left with vice grips after applying heat. Impatience was getting the better of me. The good news is the diff innerds looked pretty good, given it's 22 years old and pretty much has been driven only on Sundays most of its life ;-) - since the early-mid 90's or so. One of the off-season winter projects.. Thanks again! Jeff |
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Posted on: 2011/2/28 6:03
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'89 Z51/'02 Z06 45/145BS NER SCCA |
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