Where to get 1968 C10 inside cab heater duct hose

[HeavyHauler]

Well I noticed today on my 1968 C10 that the inside under dash heater duct defroster vent hoses are oval shaped at the top of dash vent windshield area but the other end that goes to the under dash heater box is round.

Where can I get these special heater duct hoses at? I looked at the Classic Parts of America website and it shows heater duct hoses that are round on both ends.


If the heater duct hose end is round does it just still slip over the oval dash defroster vent?

[pjmoreland]

I bought a set of ducts from gmcpauls.com. They were constructed of cloth like the originals, and they fit extremely well. The one has the correct oval end.

[pjmoreland]

https://gmcpauls.com/Heater&AC.htm

[dmjlambert]

If you go cheap and get the plastic ducts that are round, it does fit over the oval plastic of the defog vent just fine. The plastic duct may take more patience to install, I remember each joint took a while to get pushed on adequately.

[Rust_never_sleeps]

Originally Posted by dmjlambert

If you go cheap and get the plastic ducts that are round, it does fit over the oval plastic of the defog vent just fine. The plastic duct may take more patience to install, I remember each joint took a while to get pushed on adequately.

Same here. I bought the textured plastic ones. A little patience and maybe a touch of heat and they conform fine as long as you don't fold over the edge