T-Arm Crossmember Pipe Size - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lts70 · 11-14-2007, 04:50 PM

Now that I have dropped my truck I would like to re-run my exhaust up higher. My question is when I go through the t-arm cross member can I use 4 1/2" outside diameter pipe, which I have, or is that too big? What sizes have you guys used? Here is a picture from the faq page of what I am talking about.

dave2953 · 11-14-2007, 09:00 PM

I don't see why that wouldn't work. The crossmember that Early Classic sells allows for 3" exhaust to pass through, so I would imagine that the holes are at least 4" wide. Don't see what another 1/2" would hurt. I'm sure someone else will chime in with more info.

11-14-2007, 04:50 PM	#1
lts70 1970 Daily Driver Join Date: Jun 2007 Location: Glenns Ferry IDAHO Posts: 1,038	T-Arm Crossmember Pipe Size Now that I have dropped my truck I would like to re-run my exhaust up higher. My question is when I go through the t-arm cross member can I use 4 1/2" outside diameter pipe, which I have, or is that too big? What sizes have you guys used? Here is a picture from the faq page of what I am talking about. Attached Images __________________ It's not truly yours if you didn't build it yourself or if you don't do your own maintenance.

11-14-2007, 09:00 PM	#2
dave2953 Dave's not here, man Join Date: Jun 2004 Location: Winder, Georgia Posts: 2,000	Re: T-Arm Crossmember Pipe Size I don't see why that wouldn't work. The crossmember that Early Classic sells allows for 3" exhaust to pass through, so I would imagine that the holes are at least 4" wide. Don't see what another 1/2" would hurt. I'm sure someone else will chime in with more info. __________________ - 2014 VW Jetta - 2015 VW Jetta - 1966 Ford F-250



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