So far this is the only place i found for an anti collapse spring
Mustang Lower Radiator Hose Spring Stainless Steel Small Block 65-73
Mustang Lower Radiator Hose Spring Stainless Steel Small Block 65-73
If your car doesn't have A/C then there's a good chance that the upper hose won't work for you. See my comment above.
My car is an A/C car with the thermostat housing angled toward the passenger side. I believe A/C car radiators are different as well with the top hose exiting on the passenger side instead of out the middle?