76 Tank fuel hose sizes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pound41** · 02-16-2011, 07:56 PM

Hello: my dad order new 76 1/2ton step with a 454. He passed away a few years ago and when I start it up I think its just a fuelline/hose leaking coming off the tank. I see several lines there that are cracked. There is not a parts store near by so when I drop the tank I would like to have all the hoses that I need if it is just a hose.
Thanks for your help

rfmaster · 02-16-2011, 09:24 PM

Fuel supply is 3/8" SAE30R7
Fuel return is 5/16" (if equipped)
Fuel vapor 1/4" (CCP return)
Filler neck to tank fuel inlet 1-1/4" (hard to find 90 bend)

**pound41** · 02-16-2011, 11:37 PM

Thanks for your help

02-16-2011, 07:56 PM	#1
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,269	76 Tank fuel hose sizes Hello: my dad order new 76 1/2ton step with a 454. He passed away a few years ago and when I start it up I think its just a fuelline/hose leaking coming off the tank. I see several lines there that are cracked. There is not a parts store near by so when I drop the tank I would like to have all the hoses that I need if it is just a hose. Thanks for your help

02-16-2011, 09:24 PM	#2
rfmaster Registered User Join Date: Oct 2003 Location: OC CA Posts: 1,374	Re: 76 Tank fuel hose sizes Fuel supply is 3/8" SAE30R7 Fuel return is 5/16" (if equipped) Fuel vapor 1/4" (CCP return) Filler neck to tank fuel inlet 1-1/4" (hard to find 90 bend) __________________ "The Beast" 1975 Chevrolet C20 longbed 350/700R4! with 3inch body lift Dual Flowmasters Super 40's! TBI retrofit completed (2007-07-29) New 383CID (+030) 08-304-8 9.5:1CR x36,005 (2012-12-17)

02-16-2011, 11:37 PM	#3
pound41 Registered User Join Date: Dec 2002 Location: Northern Virginia Posts: 1,269	Re: 76 Tank fuel hose sizes Thanks for your help



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