1975 gas tank swap not going well
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1975 gas tank swap not going well
I bought some tanks to replace both of mine with leaks. the original side tank was a 14 gallon with a 10 inch height and the rear was never used since I purchased it 2 years ago, due to a leaks
the front also had leaks but was in use, since the leaks were on top, the rear had the leaks on the bottom
I got the rear tank installed and it appears to be 1" greater in height. I bought a 2 inch tow strap to use in place of the original factory felt and it definitely did not add that much height.
On the rear, is it an acceptable practice to get a longer bolt and shim with washers between the strap and frame?
and on the side tank I will have a different issue for the 4" greater height of tank. does anyone know of a alternate strap available or is that typically fabricated with some new metal and welding?
1975 f250 trailer special Super Cab
460/7.5 with C6 Trans
the front also had leaks but was in use, since the leaks were on top, the rear had the leaks on the bottom
I got the rear tank installed and it appears to be 1" greater in height. I bought a 2 inch tow strap to use in place of the original factory felt and it definitely did not add that much height.
On the rear, is it an acceptable practice to get a longer bolt and shim with washers between the strap and frame?
and on the side tank I will have a different issue for the 4" greater height of tank. does anyone know of a alternate strap available or is that typically fabricated with some new metal and welding?
1975 f250 trailer special Super Cab
460/7.5 with C6 Trans
Ford Parts Specialist
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From: Simi Valley, CA
Original mid-ship tank contained 20.2 gallons with Evaporative Emission (unleaded fuel-non vented fuel cap), or 22.5 gallons without it.
Since there's no such thing as an original 14 gallon mid-ship tank, the tank is aftermarket, the fuel cap would be behind a door riveted to the bedside.
Without Evaporative Emission, the vent hose collapses or gets pinched over time, causing these notoriously slow fill fuel tanks to become even slower fill.
The vent hose was originally taped to the filler hose to prevent these maladies, but if replaced at some point, may not have been.
And, factory installed mid-ship & aft axle fuel tanks are located on the inside of the left frame rail.
Aftermarket tanks may be located on the outside of the frame rail between the bedside and frame. If T-boned in this location, the tanks split open, gas poured out, some exploded!
More Turbo
Joined: Jun 2015
Posts: 581
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From: New Hampshire
Not to highjack your thread but would you happen to have a pic of the harness that connects directly to the sending units on either of your two tanks?
Looking to see if its a two wire connection that ultimately turns into one green wire.
Thanks
Tbruz
Looking to see if its a two wire connection that ultimately turns into one green wire.
Thanks
Tbruz
More Turbo
Joined: Jun 2015
Posts: 581
Likes: 113
From: New Hampshire
Thanks,
that makes sense with what I’m seeing on my truck i.e. the one green/red wire in the approximate area of the rear/midship tank and with the replacement pigtail for the rear and midship tank.
Thanks
tbruz
that makes sense with what I’m seeing on my truck i.e. the one green/red wire in the approximate area of the rear/midship tank and with the replacement pigtail for the rear and midship tank.
Thanks
tbruz
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1973/76 F100/350 Stylesides with factory installed mid-ship and aft axle tanks have exposed fuel caps.
Original mid-ship tank contained 20.2 gallons with Evaporative Emission (unleaded fuel-non vented fuel cap), or 22.5 gallons without it.
Since there's no such thing as an original 14 gallon mid-ship tank, the tank is aftermarket, the fuel cap would be behind a door riveted to the bedside.
Without Evaporative Emission, the vent hose collapses or gets pinched over time, causing these notoriously slow fill fuel tanks to become even slower fill.
The vent hose was originally taped to the filler hose to prevent these maladies, but if replaced at some point, may not have been.
And, factory installed mid-ship & aft axle fuel tanks are located on the inside of the left frame rail.
Aftermarket tanks may be located on the outside of the frame rail between the bedside and frame. If T-boned in this location, the tanks split open, gas poured out, some exploded!
Original mid-ship tank contained 20.2 gallons with Evaporative Emission (unleaded fuel-non vented fuel cap), or 22.5 gallons without it.
Since there's no such thing as an original 14 gallon mid-ship tank, the tank is aftermarket, the fuel cap would be behind a door riveted to the bedside.
Without Evaporative Emission, the vent hose collapses or gets pinched over time, causing these notoriously slow fill fuel tanks to become even slower fill.
The vent hose was originally taped to the filler hose to prevent these maladies, but if replaced at some point, may not have been.
And, factory installed mid-ship & aft axle fuel tanks are located on the inside of the left frame rail.
Aftermarket tanks may be located on the outside of the frame rail between the bedside and frame. If T-boned in this location, the tanks split open, gas poured out, some exploded!
while the tank appears to be an aftermarket, it was professionally done and sits where the factory tank would and has the same look and style, just a 14 gal capacity - and it did have the fuel tank switch in the cab on the AC/Heater panel
This would imply that the straps holding it will have to be modified for the 4" larger tank.
one more question on the rear tank, I need the sending unit sending cable that went between the sending unit and the quick disconnect at the frame, where is a good place to look for those?
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From: Simi Valley, CA
OK, neither tank had EEC 
No kidding! 
EEC = Electronic Engine Control system - On board computer. No truck had a computer until the 1980's. Some people call it ECC, but it's the Evaporative Emission system, abbreviated Evap/Em
While the tank appears to be an aftermarket, it was professionally done and sits where the factory tank would and has the same look and style, just a 14 gal capacity - and it did have the fuel tank switch in the cab on the AC/Heater panel.
This would imply that the straps holding it will have to be modified for the 4" larger tank.
One more question on the rear tank, I need the sending unit sending cable that went between the sending unit and the quick disconnect at the frame, where is a good place to look for those?
No kidding! EEC = Electronic Engine Control system - On board computer. No truck had a computer until the 1980's. Some people call it ECC, but it's the Evaporative Emission system, abbreviated Evap/Em
While the tank appears to be an aftermarket, it was professionally done and sits where the factory tank would and has the same look and style, just a 14 gal capacity - and it did have the fuel tank switch in the cab on the AC/Heater panel.
This would imply that the straps holding it will have to be modified for the 4" larger tank.
One more question on the rear tank, I need the sending unit sending cable
that went between the sending unit and the quick disconnect at the frame, where is a good place to look for those?If you're asking for the wiring harness, it plugged into the tail lamp harness that's located on the left frame rail.
You could use any 1973/79 Regular/Crew/Super Cab mid-ship harness as long as it is long enough.
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What in the world is this? Never seen or heard of any such thing.
If you're asking for the wiring harness, it plugged into the tail lamp harness that's located on the left frame rail.
You could use any 1973/79 Regular/Crew/Super Cab mid-ship harness as long as it is long enough.
If you're asking for the wiring harness, it plugged into the tail lamp harness that's located on the left frame rail.
You could use any 1973/79 Regular/Crew/Super Cab mid-ship harness as long as it is long enough.
https://www.ebay.com/itm/NOS-OEM-For...vd2s:rk:6:pf:0
since I am not looking for period correct parts, the aftermarket will do; (I was lost my rear cable during the removal of the tank)
https://www.ebay.com/itm/1966-1979-F...FppL:rk:5:pf:0
I will be diving under tomorrow if the weather allows,
for the side tank, i have the two retaining straps and they both appear to have ford part numbers;
d4ta 9054 oa and d4ta 9054 db
I will see how they do with the gas tank and actually fitting or not
the rear tank is installed with the filler and vent hose. I just need to shim and install the straps and then connect the sending unit and fuel line, if the front tank sending unit cable/harness/pigtail will transfer to the back tank, while the other is on order
1975 f250 trailer special Super Cab
460/7.5 with C6 Trans 155" wheelbase 2wd
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
This is what I was looking for;
https://www.ebay.com/itm/NOS-OEM-Ford-1971-1977-Bronco-Fuel-Tank-Sending-Unit-Wiring-1972-1973-1974-1975/123274570817?epid=1482814399&hash=item1cb3bcac41:g :OiwAAOSwWxNYvd2s:rk:6
f:0
since I am not looking for period correct parts, the aftermarket will do; (I was lost my rear cable during the removal of the tank)
https://www.ebay.com/itm/1966-1979-Ford-Bronco-F-150-Fuel-Sending-Unit-Pigtail-Harness-New/352372863573?fits=Year%3A1975%7CMake%3AFord&hash=i tem520b0f3255:g:3MUAAOSw8SpbFppL:rk:5f:0
I will be diving under tomorrow if the weather allows.
This is a Bronco example of a sending unit wiring harness to the tail lamp harness, what I referred to in post #8.
For the side tank, i have the two retaining straps and they both appear to have ford part numbers; D4TA 9054 CA and D4TA 9054 DB
These are ID engineering numbers, not part numbers.
https://www.ebay.com/itm/NOS-OEM-Ford-1971-1977-Bronco-Fuel-Tank-Sending-Unit-Wiring-1972-1973-1974-1975/123274570817?epid=1482814399&hash=item1cb3bcac41:g :OiwAAOSwWxNYvd2s:rk:6
f:0since I am not looking for period correct parts, the aftermarket will do; (I was lost my rear cable during the removal of the tank)
https://www.ebay.com/itm/1966-1979-Ford-Bronco-F-150-Fuel-Sending-Unit-Pigtail-Harness-New/352372863573?fits=Year%3A1975%7CMake%3AFord&hash=i tem520b0f3255:g:3MUAAOSw8SpbFppL:rk:5
f:0I will be diving under tomorrow if the weather allows.
This is a Bronco example of a sending unit wiring harness to the tail lamp harness, what I referred to in post #8.
For the side tank, i have the two retaining straps and they both appear to have ford part
numbers; D4TA 9054 CA and D4TA 9054 DBThese are ID engineering numbers, not part numbers.
D4TZ-9054-C .. Strap - Mid-ship Fuel Tank - Front / Marked: D4TA-9054-CA / Obsolete
D4TZ-9054-D .. Strap - Mid-ship Fuel Tank - Rear / Marked: D4TA-9054-DA or DB / Obsolete
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