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Mod | | | Forums66 Topics128,181 Posts1,057,180 Members48,465 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2015 Posts: 12 New Guy | | New Guy Joined: Sep 2015 Posts: 12 | Hi All. I'm new to the forum and looking for help in finding the correct place to mount the coolant overflow container on my 55 gmc 100 (2nd). I'm replacing the leaking original radiator with its broken off overflow connect, and re-mounting the missing reservoir. Does any one have information/photos for the correct mounting location for the overflow container? The truck is mostly original, and I'd like to keep it that way. | | | | | Joined: Sep 2015 Posts: 12 New Guy | | New Guy Joined: Sep 2015 Posts: 12 | Just bumping this one in hopes someone might have a suggestion for proper coolant overflow mounting location | | | | | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | If your truck had an overflow container it was an accessory. I don't know what it would look like on a '55-56 GMC but I have seen one for an AD Chevrolet. I'd pose this question at oldgmctrucks.com . Ol' Kook just might have a picture of one somewhere. | | | | | Joined: Sep 2015 Posts: 12 New Guy | | New Guy Joined: Sep 2015 Posts: 12 | Thanks! After days of searching, I found this guide and this photo on Vintage Chevrolet Club of America today. Unfortunately, my 12 volt batt gets in the way, so I'll mount it on the inner fender. The additional volume of water can only help my early 2nd series with no expansion tank. You are right. It's an accessory, and mostly pre 2nd series. The engineers built in a pseudo overflow tank into the later radiator tanks. I found all this today. It never rains but it pours when it comes to researching obscure accessories. If anyone wants the repro tank they are at Bowtiebits.com
Last edited by Ben55GMC; 09/16/2015 4:22 AM.
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