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Firewall holes for 51 suburban #1166026 05/19/2016 8:42 AM
Joined: Oct 2013 Posts: 24 Riverside, California Y Yamboyak Wrench Fetcher
Yamboyak Wrench Fetcher Y Joined: Oct 2013 Posts: 24 Riverside, California	So I'm was wondering if anyone has any pictures of what holes should be kept as far as on the firewall. I plan on running a stock setup. Not sure which ones I need welded closed. Thanks in advance.

Re: Firewall holes for 51 suburban Yamboyak #1166032 05/19/2016 1:12 PM
Joined: Sep 2006 Posts: 3,596 Salt Lake City, Utah B Brad Allen 'Bolter
Brad Allen 'Bolter B Joined: Sep 2006 Posts: 3,596 Salt Lake City, Utah	This is the best reference I know of to map the holes. This is from the Factory Assembly Manual carried by all of the common parts vendors. https://www.flickr.com/photos/advance-design_parts_co/14237974312/in/album-72157631868452754/ 1950 Chevrolet 3/4-Ton 3600 More pictures on Flickr

Re: Firewall holes for 51 suburban Yamboyak #1166063 05/19/2016 4:58 PM
Joined: Oct 2013 Posts: 24 Riverside, California Y Yamboyak Wrench Fetcher
Yamboyak Wrench Fetcher Y Joined: Oct 2013 Posts: 24 Riverside, California	Thank you sir.

Re: Firewall holes for 51 suburban Yamboyak #1168461 06/06/2016 10:54 PM
Joined: Dec 2008 Posts: 9 canada C C. Dan Pannell New Guy
C. Dan Pannell New Guy C Joined: Dec 2008 Posts: 9 canada	some may be factory-correct for (for example) heater hoses, so common plugs can be popped in (and out) should you decide to install a correct-for-the-era heater (admittedly not a popular option in Riverside CA) Last edited by C. Dan Pannell; 06/06/2016 10:55 PM.

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