which replacement radiator?

[df2x4]

There’s a thread you should look at. A lot of these radiators have a spare port that you’ll need to find a good cap for to avoid a potential leak.

https://www.gmt400.com/threads/replacement-radiator.42475/

In the link above, Df2x4 mentioned a silicone cap that he has used successfully, so that would be an option if your radiator has the spare port.

Otherwise (particularly if parts are difficult to get) I would consider the ACDelco one and it would be one less thing to worry about.


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If you search eBay for 5/8" silicone caps you can find a whole bunch of them. They come in all different colors. McMaster-Carr sells them too, but only in red.

https://www.mcmaster.com/#silicone-caps/=1e8tkwi

 

[454cid]

I was referring to the section of the page where they mention how orders are grouped when they ship out, not the section that says they don't allow pickup. I made multiple orders from them during my 4L80E swap for several hundred dollars worth of stuff, all different manufacturers. It all shipped from the same place in one box. I have a hard time believing they don't keep an inventory, I'll Google the address next time though.

EDIT - Also, it seems to me that if everything shipped straight from the manufacturers you wouldn't get all the cool RockAuto magnets in the boxes!

Wholesaler, not manufacturer (in most cases). The only order that I've had recently, to come from a manufacturer, was when I ordered my Lares rag joint.... it came directly from Lares, with a magnet, sealed with Rockauto tape. Other orders come from a Wholesaler. If you order their deep discount/close-out items it'll probably come from TX. That's the wholesaler that specializes in surplus inventory.

Any company shipping for Rockauto must be getting cases of magnets and tape.

 

[454cid]

If you search eBay for 5/8" silicone caps you can find a whole bunch of them. They come in all different colors. McMaster-Carr sells them too, but only in red.

https://www.mcmaster.com/#silicone-caps/=1e8tkwi

Thanks, I will remember that when/if I ever re-route my heater core to the pump.... I've never really liked it going to the radiator.

 

[df2x4]

Thanks, I will remember that when/if I ever re-route my heater core to the pump.... I've never really liked it going to the radiator.

You're welcome! I had the radiator in my Suburban replaced a few years back and ended up with one that had the extra port. The standard Dorman rubber caps just don't hold up very well so I Googled around a little and found those.

 

[Supercharged111]

Nylon and silicone caps hold up better than the rubber garbage that the parts stores sling.

 

[MatSLO]

Thanks to everybody for your input.
I ordered the radiator from Rockauto, along with new hoses and a new thermostat.
Keeping my fingers crossed it arrives in OK shape..