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Old 02-09-2013, 11:14 AM   #1
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
Dual tank VS Single tank "Production tank"

I have an interesting question. It may have no answer now...

I've had 1973, 74, 75, 78, 79, 85, & CUCV (M1008) trucks configured with a single tank. The tank was on the LH side on all of the trucks. I don't recall ever seeing a single tank square with a RH filler.

When I look at the wiring diagrams for Dual tank setups 73-80 "Production" is the LH and AUX is RH.
In the 1981+ wiring diagrams the "Production" tank is on the RH side. My 85 and CUCV single tank trucks had/have the tank on the LH side.

I thought "Production" meant the tank that would be installed if the truck didn't have dual tanks.
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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
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RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...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.
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