Do you have the hose clamp part numbers? My next-ish task is to replace all the cooling hoses.
OEM TOYOTA HOSE CLAMPS for 1970 FJ40
2X 90460-33020 02 03.1969 - 03.1971 CLAMP OR CLIP, HOSE (FOR WATER BY-PASS HOSE) 1.49 USD
96112-10330 REPLACES 00074-63820-49, 90460-33020, 90460-33051
4X 90460-50016 01 03.1969 - 04.1972 CLAMP OR CLIP, HOSE (FOR RADIATOR OUTLET, NO.1)(Lower passenger side at radiator
96111-10500 REPLACES 90460-49062, 90460-50016
2X 90460-49062 02 12.1969 - 01.1979 CLAMP OR CLIP, HOSE (FOR RADIATOR INLET)(Upper Radiator to Thermostat & Thermostat Housing)
96111-10500 REPLACES 90460-49062
4X 90467-13130 02 09.1972 - 12.1972 CLIP (FOR FUEL HOSE) F..FJ40,55
DISCONTINUED
2X 90461-10853 01 09.1972 - 01.1975 CLAMP, VENTILATION HOSE, NO.2
4X 90467-24038 02 03.1969 - 07.1980 CLIP (FOR VENTILATION HOSE) F,2F..FJ4#,55
8X 96112-10220 (HEATER HOSE CLAMP?)
10X 96112-10250 (HEATER HOSE CLAMP?)
05/29/2024 Edit:
I believe that 96111-10580 is the larger 58 mm radiator hose that fits on the hose at the bottom of the water pump and on each side of the "Tee" connection. (Total of 3 required). The other radiator hoses are a bit smaller (50mm) and go at the upper radiator, upper water pump and lower radiator. (Total of 3 required). The water pump bypass hose uses 2 hose clamps, part # 96112-10330 (33mm). I think that when I first ordered my clamps I didn't order the 58mm (96111-10580) and I had to go back an order those.
I hope this helps.