Show us a picture. Usually it goes in the top radiator hose. You can splice it in.

 

What I use for coolant filters.

Yes, a section of old stocking or panty hose that doesn't have a run, inside the upper hose and folded over the outside at the thermostat housing.

FWIW, once you get the cooling system clean you shouldn't need a filter....

 

You can throw it away and just get the cooling system clean.

 

I would put it in and KEEP the cooling system clean. The heads & engine block can continually "shed" particles that are better off plugging this filter than your radiator. I have a Tefba filter on my '66. It goes in the upper radiator hose. We would need a pic of yours to see where it might go.

MrFreeze

 

Let’s see if I can put this pic on here…

i will get the coolant system flushed as soon as I get it back together I’ve had a week and so far just taking stuff off.

 

If you're taking your water pump off that's a great time to flush the water jacket. Take the heater hose off the side of the head and connect a garden hose there. Turn on the water and let it run a while. Put a finger over a hole in the front that will spit back at you to increase the flow into the engine. Spray into the front of the open water jacket too to really stir up the sediment and carry it out.