Problem mounting rear O2 sensor (newbie)

CainISAble · 08-01-2009, 11:33 AM

In my recently accquired 94T100 (3.0L 6cy) the exhust was rediculously rigged so that the tail pipe end right over the left side of the rear axel....NOT good for obvious reasons. So I tore it off. Manifold to Cat looked good so I ordered a "Cat Bak" kit online. This included the gasket, intermidiate/extension pipe, muffler, tail pipe and new hangers. The old intermidiate pipe had flange fitting for the rear Oxygen sensor so I assumed the new piece would as well....WRONG. The supplier swears they sent the right kit so I had a local parts store order a similar kit only in one solid piece still no fitting for the O2 sensor. Does anyone know where to get this part with the fitting already on it or is the some sort of mounting kit i need to get and cut the pipe and mount it. I haven't talked to the local yota dealer parts department yet but figured I'd throw this one at the "experts" first.

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bain · 08-01-2009, 12:38 PM

i had the same problem. I cut a mount off a stock pipe and drilled a hole in the new pipe and welded it on. or you can go to a muffler shop and they can weld you on a round bung. You would just have to unscrew the O2 sensor out of the footballish shaped mount it comes with and screw it into the new bung.

CainISAble · 08-03-2009, 09:08 AM

Thanks Bain,
I got my buddy at the parts shop in my home town looking for one with the mount already on it (why didn't I think to call him before?!). I'm guessing he'll strike out with Walker (their main exhust supplier) so I'll probably go with the round bung option. Didn't even think to try to unscrew the sensor from the flange mount (duh!). Thanks again for your help.
G Cain

08-01-2009, 12:38 PM	#2 (permalink)
bain Registered User Join Date: Jul 2004 Location: lenoir, NC Posts: 333	i had the same problem. I cut a mount off a stock pipe and drilled a hole in the new pipe and welded it on. or you can go to a muffler shop and they can weld you on a round bung. You would just have to unscrew the O2 sensor out of the footballish shaped mount it comes with and screw it into the new bung. __________________ geared,locked, lifted, snorkeled, protected and beat all to hell and I'll never use the search button!!!

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08-03-2009, 09:08 AM	#3 (permalink)
CainISAble Registered User Join Date: Jul 2009 Posts: 6	Thanks Bain, I got my buddy at the parts shop in my home town looking for one with the mount already on it (why didn't I think to call him before?!). I'm guessing he'll strike out with Walker (their main exhust supplier) so I'll probably go with the round bung option. Didn't even think to try to unscrew the sensor from the flange mount (duh!). Thanks again for your help. G Cain