Well in any event how you get your gasoline into the tank it is important to know when to go seek some and the M & H module is one of the best out there for automotive applications. In recent years a host of aftermarket kits sold on eBay have flooded the market but this is the best professional adjustable one out there. It tucks nicely under the 68-69 console and wires the same way the original module does.
There are three models for a reason. 1967 the factory LFWM send power out the Yellow lead to light the bulb. 1968 and 1969 the yellow supplied ground to light the light. You can't use a 68/69 on an existing factory 67 system.
The console gauge wiring version is if you wish to add the low fuel warning light option to any 67 without gauges or console, or 68-69 without saw tooth gauges or even a console. This all in one unit includes a light that gets power from the system pink in the modules harness and then yellow supplies the ground.
The standard 69 can be installed behind the dash and hook up to the rear of a 69 center pod or right pod fuel gauge and use the existing FUEL light socket on the dash with some scrap wire.
The same is possible with 67's and 68's but you may want to put an aux light somewhere on the dash since the 67/68 re purposed the OIL pressure warning lights if you had factory console and gauges. For 67's you may need the unit that supplies power to a socket.