Product Summary

63-72 Chevy, Custom Replacement Fuel Tank Style

  • This complete fuel tank kit makes it easy to mount a tank under the bed of your 1963 to 1972 Chevy pickup
  • 240 to 33 Ohm fuel level sender is included to work with a variety of aftermarket fuel gauges. If O/E fuel gauge is utilized, please consider available separately sending units # 911-40560 0-30 Ohm (’63-’64) or # 911-40561 0-90 Ohm ’65-’72 applications
  • Billet aluminum fuel fill neck with pop up cap as well as filler hose is included to install in the bed of the pickup
  • Roll over vent valve is included to properly vent the tank and provide extra safety in the event of a roll over
  • Aluminum construction with fully TIG welded seams and exposed welds make for a truly custom look

Comes as a Kit

Key Specs

Fuel Tank StyleCustom Replacement
Fuel System TypeCarbureted
Fuel Capacity Range15.00-19.99 Gallons
Capacity18 gallons
Material TypeAluminum

Need To Know

This Product Will Ship Free

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy

Speedway Motors 91604038 Details

  • Complete kit features tank, fuel filler cap, filler neck hose, and fuel level sending unit
  • Relocates fuel tank from passenger compartment to under pickup bed
  • Provides more cabin room for custom seating, audio equipment, and more
  • TIG welded .090-inch thick aluminum construction for strength with light weight
  • Features industry standard five-bolt fuel level sender mounting pattern
  • Rear mounting configuration provides better weight balance and enhances traction
  • Much safer fuel storage, as fuel is no longer right behind the driver and passengers
  • No fuel smell or sloshing sounds in the passenger compartment anymore
  • Tank features AN6 pickup tube and 5/16-inch vent fitting for carbureted applications
  • Fits both two-wheel drive C10 and four-wheel drive K10 truck models
  • 18 gallon fuel capacity (factory tank is 20 or 24 gallon capacity depending on year)
  • Not a universal fuel tank; dimensions, and mounting flanges specific to 63-72 Chevy truck frames

Make Your 1963-1972 Chevy Truck Safer by Relocating the Fuel Tank

Modern cars and trucks are overseen by dozens of engineers and safety advocates with 1,000s of hours of product testing (including those crash tests we all love to watch on YouTube) to ensure that these vehicles keep our families safe on today’s roads. However, things were different 60, 70, and even 80 years ago. Many vehicles from these time periods are downright unsafe at today’s road speeds and with the number of vehicles on the road at any one time today. A completely stock vehicle from the ’20s through the late ’60s is safest as a static museum display, relegated to parade use, or should be transported via a trailer if some concessions to safety aren’t willing to be made.

Updating braking, tires, and in some cases even performance to handle modern road speeds, are the norm, but for some vehicles, especially pickup trucks of the period, updating the fuel system is something to consider as well. Why? Well for starters most of these trucks used in-cabin fuel tanks. So, you’re either sitting on or in front of 15 plus gallons of fuel. I don’t know about you, but that doesn’t give us a warm and fuzzy driving down the road with everyone else around you on their cell phones going down the road. Relocating the fuel tank outside the passenger compartment would certainly be a top priority when updating a classic pickup truck and we offer several application specific truck bed fuel tank offerings to do just that.

Frame Specific Dimensions Ensures a Perfect Fit Under the Bed of Your Pickup

Moving the fuel tank to the rear of your pickup under the truck’s pickup box/bed floor provides several benefits. The most obvious of course is removing the liquid fuel storage from inside the passenger compartment where a ruptured tank, separated fuel line or filler hose in an accident can cover the occupants with highly flammable gasoline. Moving the fuel tank to the rear not only provides a higher level of safety but places a good bit of weight at the rear of the pickup, which aids in traction. On average you’re looking at roughly 100 pounds of weight with a full truck bed fuel tank. Relocating the fuel tank also provides a bit more cabin storage room, or space for audio gear, road trip tools, and so forth. For 67-72 truck owners we even offer a fuel filler delete panel to cover your factory filler hole in your truck’s cab.

We have designed our under bed aluminum fuel tanks to mount between the frame rails for a perfect fit behind the rear axle assembly. This is not a universal fuel tank requiring modification to fit your truck. The 27-inch wide truck bed gas tank is built from .090-inch thick aluminum sheet and TIG welded for a strong, yet light assembly. An internal full height baffle reduces fuel slosh and keeps the pickup tube immersed in fuel. We provide generous 2-inch wide and 8-inch long mounting flanges made from 1/8-inch aluminum on each end (for a total width of 31 inches) of our aluminum fuel tank that fit within your truck’s frame rails. Final placement is directed via the factory rear crossmember and all you must do is drill your own mounting holes and bolt the tank in (hardware not supplied).

Available For Carbureted or EFI applications in Bare Tank or Full Kit Versions

As you improve your classic pickup with things like replacement gauges and even fuel injection, a truck bed gas tank such as our under bed aluminum fuel tank will certainly help with these upgrades as well. The kit supplied 5-bolt fuel level sender features 240 ohms empty, 33 ohms full resistance values, which are common to many aftermarket fuel level gauges. If your aftermarket gauges use a different resistance value or you wish to keep the original fuel level gauge you can order our fuel level interface module so that your stock or other aftermarket gauge will work properly.

Our carbureted truck bed fuel tank kit features an AN6 pickup fitting with a 1/4-inch NPT female port for the included tank vent/rollover valve. The vent fitting may also be used for a fuel return line for carbureted applications using an electric fuel pump and regulator, or for a frame rail mounted EFI pump, but a vented fuel filler cap will be required. The 1-1/2-inch diameter filler neck uses the standard filler neck hose that is included in the kit to connect to our billet pop-up gas fill (also included) to mount in the bed floor of your truck.

For fuel injection retrofits we offer an EFI ready tank and an EFI ready tank kit version with  fuel pump module and everything else you need to install. So, whether you’re running a carb or the latest EFI system in your classic 63-72 Chevy truck, we have the Chevy truck gas tank retrofit for you to keep you safe and moving down the road.

Speedway Motors 91604038 Specifications

MFG. Part #91604038
BrandSpeedway Motors
Fuel Tank StyleCustom Replacement
Fuel System TypeCarbureted
Fuel Capacity Range15.00-19.99 Gallons
Capacity18 gallons
Material TypeAluminum
Sending Unit IncludedYes
Fuel Pump IncludedNo
Filler Neck IncludedYes
Tank Straps IncludedNo
Hardware IncludedYes
Overall Length27"
Overall Width17"
Overall Height9"
Speedway Motors Catalog Part #916-04038
Ohm Range240-33 Ohm
Material Thickness0.09"
Outlet Fitting3/8 NPT to AN6
Sold in QuantityKit