Lower radiator hose
 

Getting ready to install a new champion radiator in my 70 gmc c1500. I figured out the top hose but having some issues with the lower. I see there are 2 options 1 with factory ac vs non ac. Mine was originally a non ac truck i believe but someone added classic air and switched to a later 1 piece seal block. I am looking at whats in the truck now but looks like it might not be right. Right now it looks like its a non ac hose (gates 20582) but the fit looks sketchy at best. Wondering if anyone knows a better hose to run.

Re: Lower radiator hose
 

Touching the frame will cut the hose in no time. Try rotating just one end or even both of the hose. You might get it off the frame. The hose is a cut to fit and may be too short

Re: Lower radiator hose
 

Try this:

https://classicparts.com/1967-72-low...il.description

Re: Lower radiator hose
 

Oh yea I've got some post or thread on this forum somewhere concerning the lower radiator hose but I don't know how to find it.
My engine sits back with the IL-6 frame mounts so that didn't help and I wound up double clamping the hose to the radiator after someone suggested I may have to trim it, which helped.
At any rate no matter what you end up doing I would suggest you cut a slit along a piece of fuel line to protect the hose from chafing against the frame.
I got those things all over the place and it helps me sleep better at night. :lol:

Re: Lower radiator hose
 

Thanks for the info. Ordered a 20694 for ac trucks. Will see if its fits better. Hopefully changing out the parts tomorrow if the weather holds out.

Re: Lower radiator hose
 

I just remember having a heck of a time finding a hose that would even remotely work because of how far back my engine sits, but putting a piece of fuel line on the frame made me feel better about the rubbing issue.

Re: Lower radiator hose
 

got the new radiator, water pump, and the bottom hose worked great

Re: Lower radiator hose
 

Happy to hear that! :ennyd: