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**clay68c10** · 05-02-2019, 04:47 PM

I’d use pipe wrap insulating foam and maybe a little of the black sealer (dum dum, monkey $hit, windshield butyl) to keep it in place.
There’s probably a specific seal for that, like the AC evaporator case seals.

05-02-2019, 04:47 PM	#2
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,905	Re: What is used to seal heater hoses to heater box on 1968 Chevy C10 I’d use pipe wrap insulating foam and maybe a little of the black sealer (dum dum, monkey $hit, windshield butyl) to keep it in place. There’s probably a specific seal for that, like the AC evaporator case seals. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ