M35A2 Aftermarket Radiator Install Thread

Yea I may come up slightly short but I won’t know till I get the other elbow, hasn’t arrived yet. Hopefully it all fits but we’ll see.

https://www.napaonline.com/en/p/NBH7695 Just found this on napa locally, it has an inside diameter of 1.75 inch inside. I'm going to get this since it seems fairly long. I can just cut what is too long

Got the radiator in, only thing is I had to lower it a little bit so the hood can clear the cap on top

Hummer Guy said:

Got the radiator in, only thing is I had to lower it a little bit so the hood can clear the cap on top

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That’s awesome, happy to see another example of it! Able to post some pictures of your mounts? Am curious how someone else approached that part compared to my angle iron method.

I actually just got all my hoses in today, mine looks a little … bizarre but it doesn’t bother me


Ended up using 3 billet couplers and 4 sections of hose. Not the most efficient and streamlined water routing but it’s a deuce at the end of the day. For the bottom hose, I was able to tighten it down despite the 1/4” discrepancy. It’s been holding 2.5 gallons of water for the last 2 days without any leaks, will see how it does under pressure.

Now to buy colossal amounts of distilled water and the good old green stuff coolant.

I ended up doing about the same with the brackets, I bend mines a bit where the fender bracket is at. I also ended up using 3 billets, 2 on top and 1 at the bottom

Nice work! Glad to see you used the anti vibration material between truck/radiator brackets!

Welp this project is all buttoned up for now. I’m not a fan of how many hose clamps I ended up with on the top hose section, I’ll likely try to consolidate all this down the line but at least she’s back up and running for now. Luckily there are no leaks though

Here’s a vid of it running after adding coolant:
Hope this thread was helpful!

I drove mines around today for around 2 hours, and the radiator functioned perfectly with no leaks either

Good writeups! Any such ingenuity will keep our trucks running longer!

Do you have a link to the radiator you purchased? I can't find that one.

cavtrooper78 said:

Do you have a link to the radiator you purchased? I can't find that one.

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These are the radiators I was looking into for my Deuce if that helps you.
Summit Racing Performance fit Aluminum radiator part number SUM384039
Or KR Champion Radiator for 1955-1959 GMC truck MFG part number CC8559
I hope that helps.