I want to put a wideband AFR sensor on my 97 T100 4x4. To do this you have to weld a bung in your exhaust ahead of your 02 sensor. I'd like to buy a second exhaust piece so I can work on getting it welded without having my truck disabled for a few days. Does anyone know where i can find one or even what the part number is? There are a few on ebay, but they all say 2wd only, or excludes 4wd or somethign like that. here's a picture of the 2wd version:

 

Do you have an auto or manual transmission?

Using www.toyodiy.com:

Part number fer the 4WD auto pipe is...
17410 PIPE ASSY, EXHAUST, FRONT
17410‑62140 1 $160.33

Part number fer the 2WD auto pipe is...
17410 PIPE ASSY, EXHAUST, FRONT
17410‑0W031 1 $176.40

I think yer best bet would be to check out www.car-part.com and contact one of the vendors on there with yer request. I'm sure there's enough 4WD T-100 in salvage that you could choose from. You could also see what's on yer local craigslist or even yer local TTORA chapter.

This is a quick peruse of car-part.com...

Year
Part
Model Description Part
Grade Stock# US
Price Dealer Info
1996
Exhaust Pipe
Toyota T100 SR5,3.4IF,AT4,-CAT C g10090 $125 Nix 99 USA-WA(Lynnwood) E-mail 800-782-0682 / 425-743-2881
1996
Exhaust Pipe
Toyota T100 PU,3.4L,MT 2WD T11333 $125 Rancho Toyota Truck & SUV Recycling USA-CA(Rancho-Cordova) E-mail 877-551-5575 / 916-631-7777
1997
Exhaust Pipe
Toyota T100 FRONT PIPE,V-6,MATCH A 590 $100 J and J Auto Parts USA-AR(North-Little Rock) E-mail 501-771-2772
1996
Exhaust Pipe
Toyota T100 SR5,3.4IF,AT4,4X,FED A F10019 $100 Nix 99 USA-WA(Lynnwood) E-mail 800-782-0682 / 425-743-2881
1996
Exhaust Pipe
Toyota T100 3.4L AT FRT 4WD 5-24-11 BS LT1129 $100 LTS Auto Dismantling, Inc USA-CA(Rancho-Cordova) Request_Quote 877-240-8777 / 916-852-7777 Request_Insurance_Quote
1998
Exhaust Pipe
Toyota T100 CNTR PIPE CK 4-7-11 AN LT1130 $100 LTS Auto Dismantling, Inc USA-CA(Rancho-Cordova) Request_Quote 877-240-8777 / 916-852-7777 Request_Insurance_Quote
1998
Exhaust Pipe
Toyota T100 FRNT PIPE CK 4-7-11 AN LT1130 $100 LTS Auto Dismantling, Inc USA-CA(Rancho-Cordova) Request_Quote 877-240-8777 / 916-852-7777 Request_Insurance_Quote
1997
Exhaust Pipe
Toyota T100 ENGINE PIPE, V6, MT,4X4, WA1670 $Call Weber Auto and Truck Parts USA-NH(Derry) E-mail 1-603-432-2084/1-800-594-2084