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03-23-2020, 12:21 PM
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#1
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Montana Master
Join Date: Mar 2020
Location: Waynesville
Posts: 533
M.O.C. #25947
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replacing fuel tank
Hi All,
I was going to replace my fuel tank for a 32 gal to a 70 gal. Some friends of mine think I am wasting my money. It will be about a $1500.00 job when done. What do you all think?
Truck is a 3500 4X4 HD Dodge long bed dully 6.7 Cummings, 9 speed manual transmission,
getting up to 12 mpg while in town at 63 mph. 9 mpg at 70 mph. Driving range now about 275 miles
Charlie
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03-23-2020, 01:13 PM
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#2
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Montana Master
Join Date: May 2010
Location: Rock Island
Posts: 1,074
M.O.C. #10457
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We had a Titan 55 gallon installed in our 2017 Ford 6.7 F350 SRW Short Bed and we have enjoyed not having to worry about finding a refueling point as often. We prefer to stop at rest stops verses truck plazas when ever possible. We now can refuel once per day at our favorite brands. The total cost for tank and labor for us was $1,625 in 2019 (plus any applicable tax that you might have).
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03-23-2020, 01:55 PM
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#3
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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I just bought a new Ram 3500 short bed. However I added a Aux tank in the bed 46 gal Cost about $476 and installed myself (easy install). So now I have 78 Gallons. Replacing the Fuel tank would have impacted my warranty whereas the Aux does not. Best part is it is 1/3rd the cost and if I buy a new truck the tank can go with me in the future.
https://www.tankandbarrel.com/rectan...nk-p-1208.html
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03-23-2020, 02:03 PM
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#4
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Montana Master
Join Date: Oct 2014
Location: Hagerstown
Posts: 906
M.O.C. #16013
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go for the gold
It`s only a waste of money if you don`t take it out and put your old tank back in. Then sell it for least half of what you paid for it when you trade your truck. Cheaper and movable to any truck is the in bed fuel tanks of 35 to 60 gallon which accomplish the same thing for far far less than the Titan type.
__________________
2018.5 3791 Rear Den Montana, on the lake no 3rd A/C, Mini Split
Electric Brakes ..... Disk Brakes, it`s the only way
F350 Ford Dually 4:10`s w/bags (payload 5595 lbs) Sumo Springs 63 gal aux tank
Reese Goosebox Mor/Ryde SRE 4000 X Factors Monroe shocks.... real smooth ride
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03-23-2020, 03:32 PM
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#5
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Montana Master
Join Date: May 2017
Location: new caney
Posts: 1,050
M.O.C. #19873
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I bought a 60 gal. RDS tank for my 2012 short bed Ram and kept the truck for a year. I traded the truck for a 2013 Ram and took the tank out of the 2012 and the dealer suggested it as they didn't want it. The portable tanks are much less expensive and what previously has been said, it can go with you to the next truck. This tank has more than paid for itself by keeping me out of the truckstops which are usually 30 to 40 cents more than regular service stations. The convenience of not having to fuel frequently is just icing on the cake. This is the best mod you can do to your truck.
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03-23-2020, 04:19 PM
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#6
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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I just installed a Titan in my Ram. Wouldn't have another truck without a larger tank. The in bed tanks didn't appeal to me for various reasons.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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03-23-2020, 04:25 PM
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#7
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by Texan
I bought a 60 gal. RDS tank for my 2012 short bed Ram and kept the truck for a year. I traded the truck for a 2013 Ram and took the tank out of the 2012 and the dealer suggested it as they didn't want it. The portable tanks are much less expensive and what previously has been said, it can go with you to the next truck. This tank has more than paid for itself by keeping me out of the truckstops which are usually 30 to 40 cents more than regular service stations. The convenience of not having to fuel frequently is just icing on the cake. This is the best mod you can do to your truck.
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Whats a Service Station?
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03-23-2020, 04:38 PM
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#8
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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If you want to actually replace your fuel tank there are 3 major players. S&B, Titan and Transferflow (metal).
I've had a Titan put into my last truck and I tried to install the S&B in my current Ford F350; ended up having more costs and someone else install it.
And of course you never get your money back but you will always have room in your truck box.
Pulling a trailer and getting 10 miles (or less) per mile with a small fuel tank is crazy. The newer short box trucks have larger tanks.
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03-23-2020, 04:46 PM
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#9
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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Quote:
Originally Posted by mazboy
If you want to actually replace your fuel tank there are 3 major players. S&B, Titan and Transferflow (metal).
I've had a Titan put into my last truck and I tried to install the S&B in my current Ford F350; ended up having more costs and someone else install it.
And of course you never get your money back but you will always have room in your truck box.
Pulling a trailer and getting 10 miles (or less) per mile with a small fuel tank is crazy. The newer short box trucks have larger tanks.
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My Titan was not an easy install either. The manual had errors and lacked proper detail. A full day working alone.
Note that mine was advertised as 52 gallon. It holds 48 actual gallons. With a five gallon safety, that leaves 43 usable gallons which in my case is 430 miles of towing.
__________________
2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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03-23-2020, 04:53 PM
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#10
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Montana Master
Join Date: Sep 2019
Location: lake stevens
Posts: 504
M.O.C. #24938
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Quote:
Originally Posted by mazboy
If you want to actually replace your fuel tank there are 3 major players. S&B, Titan and Transferflow (metal).
I've had a Titan put into my last truck and I tried to install the S&B in my current Ford F350; ended up having more costs and someone else install it.
And of course you never get your money back but you will always have room in your truck box.
Pulling a trailer and getting 10 miles (or less) per mile with a small fuel tank is crazy. The newer short box trucks have larger tanks.
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My 2019 Ram 3500 SB only 32gal, ford not much better. The aftermarket under truck tanks for SB are limited in size whereas in bed will get you much further
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03-23-2020, 05:05 PM
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#11
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Montana Master
Join Date: Aug 2018
Location: Minden - NV
Posts: 507
M.O.C. #22360
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Quote:
Originally Posted by Charlie 3931fb
Hi All,
I was going to replace my fuel tank for a 32 gal to a 70 gal. Some friends of mine think I am wasting my money. It will be about a $1500.00 job when done. What do you all think?
Truck is a 3500 4X4 HD Dodge 6.7 Cummings, 9 speed manual transmission,
getting up to 12 mpg while in town at 63 mph. 9 mpg at 70 mph. Driving range now about 275 miles
Charlie
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I installed the 30 gallon Transfer Flow in-bed toolbox/tank combo. It has a control module you wire into the main fuel tank sender circuit along the frame rail. Your fuel gauge on the dash is modulated for the total system level without have to throw a switch. There is a separate display for fuel levels in each tank. It meters the fuel from the aux tank to the main automatically through the main tank vent line and also has a little inline fuel filter before it fills the main tank. The tool box option is a bonus. There was a 50gallon option for long beds (27" wide), but I didn't want to lose that much bed space. I have around 68-72 gallons of total storage depending on how much air space (topping off) I leave in the aux tank. People use the argument they can't drive that far in a day. For me it was planning my fueling locations at my convenience and the tool box.
__________________
2013 F350 Lariat Ultimate CC LB
2019 3790RD
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03-23-2020, 06:43 PM
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#12
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Montana Master
Join Date: Dec 2017
Location: Chattanooga
Posts: 681
M.O.C. #20906
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ATI in bed 46 gallon, love it. Fits under my BakFlip cover.
__________________
2019 Montana 3121RL
2017 XLT 350 SCLB DRW 4X4
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03-23-2020, 06:52 PM
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#13
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Seasoned Camper
Join Date: May 2019
Location: Knoxville
Posts: 51
M.O.C. #24025
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RDS 95 gal Toolbox combo. If you full time, bed space isn't to much of a concern in my opinion. Being able to choose where and when you stop is. I think about filling the tanks between 1000 and 1200 miles. If and when we ever decide to change trucks, tank goes with me. Not an option if you have a too short-short bed. Just my .02. It also is below bed rail.
__________________
Walt and Vicki Forester
2015 Ram 3500 Dually G56 ViAir/Hellwig Onboard Air/Springs BD 2Low Kit RDS 95 Gal Tank/Combo American Force 19.5 Falken Bi 850 225/70 19.5
2018 3730FL
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03-23-2020, 09:16 PM
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#14
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Montana Master
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,898
M.O.C. #9561
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lightsout. you are giving misleading on S&B replacement fuel tanks. they are sized to be around 52-60 gallons so you don't have the hassle of the in the box tank.
https://www.sbtanks.com/
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03-24-2020, 08:33 AM
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#15
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Montana Master
Join Date: Nov 2015
Location: Arlington
Posts: 1,523
M.O.C. #18081
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One of the best things we ever did was to change our stock Ram tank. It was on 30 gallons. The increased range was enough payback for us out in the west.
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03-24-2020, 08:48 AM
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#16
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Depends on your RV travel style. We just have the OEM 40 gal tank on or F-350. We travel maybe 300 miles a day. We have never in years of travel had a problem with fuel. We fuel at truck stops and there are plenty of them. It you what one or need one that is great.
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03-24-2020, 08:55 AM
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#17
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Montana Master
Join Date: Nov 2007
Location: Kville
Posts: 2,865
M.O.C. #7871
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Quote:
Originally Posted by Charlie 3931fb
...I was going to replace my fuel tank for a 32 gal to a 70 gal. Some friends of mine think I am wasting my money. It will be about a $1500.00 job when done. What do you all think?....
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That's what I did in my Chevy D/A 3500 dually....you don't lose any bed space, good idea.
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03-24-2020, 12:06 PM
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#18
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Montana Master
Join Date: Mar 2016
Location: Catoosa
Posts: 787
M.O.C. #18384
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Keep in mind that diesel, at about 7lbs per gallon, will add over 350 lbs to your rear axle if you have a 50 gallon auxiliary tank.
__________________
2015 3100RL legacy...2005 Ford F-250 CC SB. Tows like a charm! 4/19 Updated to 2017 Chevy 3500 CC SB SRW -hope it tows as well as my F 250 did!
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03-24-2020, 02:02 PM
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#19
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Montana Master
Join Date: Oct 2014
Location: Hagerstown
Posts: 906
M.O.C. #16013
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go for the gold
Quote:
Originally Posted by Theunz
Keep in mind that diesel, at about 7lbs per gallon, will add over 350 lbs to your rear axle if you have a 50 gallon auxiliary tank.
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I have a 45 gal. tank, my truck doesn`t care about that.
__________________
2018.5 3791 Rear Den Montana, on the lake no 3rd A/C, Mini Split
Electric Brakes ..... Disk Brakes, it`s the only way
F350 Ford Dually 4:10`s w/bags (payload 5595 lbs) Sumo Springs 63 gal aux tank
Reese Goosebox Mor/Ryde SRE 4000 X Factors Monroe shocks.... real smooth ride
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03-24-2020, 03:16 PM
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#20
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Montana Master
Join Date: May 2017
Location: South East NC
Posts: 1,768
M.O.C. #19865
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Quote:
Originally Posted by lightsout
My 2019 Ram 3500 SB only 32gal, ford not much better. The aftermarket under truck tanks for SB are limited in size whereas in bed will get you much further
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Ford LB tank is 48 gallon on my 2019, about 150% of your Ram! Neither are big enough so my RDS aux tank was installed in the now 3rd truck
__________________
John & Patty
2022 3855 BR
2019 Lariat F350 4X4 Dually
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