Dropping fuel tanks on CC? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Chevy3+3 · 07-31-2016, 12:48 AM

Will I be able to drop the fuel tanks on my '88 CC without taking the bed off? Will they lower far enough for me the get the fuel line connections loose? Or is it just easier to remove the bed also. Seems like 1/2 the rank is under the cab and other 1/2 is under the bed.

**hatzie** · 07-31-2016, 03:34 AM

You can take it off without pulling the bed but it won't be much fun.

Cut the rubber fuel lines off and replace them with new SAE J30R9 hose. They're almost 30 years old.

Use Fuel Injection clamps or spring band clamps do not use cheap worm clamps on the fuel pump or the sender connections. The original fuel pump clamps are usually Oetiker Ear Clamps.

BTW. Most hose sections that come with replacement fuel pumps are not submersible SAE J30R10 hose... when I install a new in-tank pump I expect to throw out the included hose sections because they are not SAE J30R10 hose so they'll melt and crack when submersed in fuel. J30R10 has Fluroelastomer outer and inner jacket. J30R10 will handle E10 & E15 pump fuels fairly well.

My post on SAE hose types and proper clamps...http://67-72chevytrucks.com/vboard/s...d.php?t=696742

Be sure to douche out the tank. If it's full of crusty varnish and or rust replace it.

07-31-2016, 12:48 AM	#1
Chevy3+3 Registered User Join Date: Oct 2013 Location: Winfield KS Posts: 489	Dropping fuel tanks on CC? Will I be able to drop the fuel tanks on my '88 CC without taking the bed off? Will they lower far enough for me the get the fuel line connections loose? Or is it just easier to remove the bed also. Seems like 1/2 the rank is under the cab and other 1/2 is under the bed. __________________ 88' Chevy V30 3+3 4x4 Dually 454 TBI/NV4500/NP205

07-31-2016, 03:34 AM	#2
hatzie Moderator Join Date: Oct 2008 Location: Wentworth, NH Posts: 4,975	Re: Dropping fuel tanks on CC? You can take it off without pulling the bed but it won't be much fun. Cut the rubber fuel lines off and replace them with new SAE J30R9 hose. They're almost 30 years old. Use Fuel Injection clamps or spring band clamps do not use cheap worm clamps on the fuel pump or the sender connections. The original fuel pump clamps are usually Oetiker Ear Clamps. BTW. Most hose sections that come with replacement fuel pumps are not submersible SAE J30R10 hose... when I install a new in-tank pump I expect to throw out the included hose sections because they are not SAE J30R10 hose so they'll melt and crack when submersed in fuel. J30R10 has Fluroelastomer outer and inner jacket. J30R10 will handle E10 & E15 pump fuels fairly well. My post on SAE hose types and proper clamps...http://67-72chevytrucks.com/vboard/s...d.php?t=696742 Be sure to douche out the tank. If it's full of crusty varnish and or rust replace it. __________________ 1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials... 1973-1991 GM Light Truck Service, Unit/Overhaul, Wiring Manuals, Parts Books and Some 1968-1999 GM Service Training textbooks in PDF 1988-1998 GMT400 CK service manual project 1988-1993 GMT400 CK parts books. 1967-1972 GM Light, Medium, & Heavy Truck Service Manuals in PDF Please include at least the year and model in your threads. It'll be easier to answer your questions. And please let us know if and how your repairs were successful. Last edited by hatzie; 07-31-2016 at 04:07 AM.



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