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ballast · 06-20-2009, 07:58 PM

I've got an '84 GMC built in the St. Therese, Quebec plant, it came stock with a cat. But it's not a big 10.

From what I've read the big 10's from 79 on did have cats.

See this link from another board:http://forum.73-87chevytrucks.com/sm...php?topic=14.0

Jason

06-20-2009, 07:58 PM	#8
ballast Registered User Join Date: Jun 2009 Location: Scottsburg, IN Posts: 3	Re: cat or not that is the question I've got an '84 GMC built in the St. Therese, Quebec plant, it came stock with a cat. But it's not a big 10. From what I've read the big 10's from 79 on did have cats. See this link from another board:http://forum.73-87chevytrucks.com/sm...php?topic=14.0 Jason