the heater core hose on my 1969 c/10 is one in" stuff you could try to check that out.
,jed
__________________
Jed
Proud to be a FFA member Westmoreland,TN Chapter
1978 Cub cadet 1450 IH Hubcaps
1975 1650 SGT Work In Progress
1974 cub cadet 129 with sleeve hitch/spring assist
1974 108 (Mint) #510358
brinly 12 in plow,disc,8 in plow ,2 42, 2 44A ,50A DECKS
#40 boxblade,can`t keep up with the rest lol
   
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