What size cat do I need?

[rollinstyle]

I need to order a cat for my truck, but I don't know what size and the ebay seller won't reply. BTW it's a Vortec 4.3. Thanks.

[rollinstyle]

No one knows?:confused:

[ridin_on_rails]

Well, I did a little research and I can't find anyone that list the size of the cat for a 96 or newer chevy truck. I keep finding pics like this that include the Y-pipe.
http://catalog.all-catalytic-converters.com/auto_images/image.php?imgfile=9720

Here's the web page that i found had the most info (http://www.all-catalytic-converters.com/chevy-c-(2wd)-k-(4wd)-converter.html)

Or give them a call at 1-800-293-9910.

[rollinstyle]

Thanks man

[CKTA]

I would say a 2.5" for the V6.

[ridin_on_rails]

My '89 305 uses a single 3" cat.