Pump rebuilding kits are best bought from a company called Then and Now Automotive. However, an electric fuel pump may be your best answer in the world we live in today. Since 1997 I've used this fuel pump and it works great. I actually keep an extra since these are small, very easy to install and not expensive. I also used the hole where the mechanical pump used to be to add a spin-on oil filter to the engine (shown below). Electric pump: https://www.amazon.com/gp/product/B00496RE82/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1 I prefer this pump over any others because it produces between 2 and 3.5 psi pressure and no matter what anyone else might tell you, that is all you need for the Chevy inline 6. In fact, more than that can cause overfilling problems in your carburetor (meaning flooding, running rich, etc). Mount this back where the line comes out of your fuel tank. Electric pumps were made to push, and not to pull.
Now you can see what I did with the old fuel pump mounting spot...
~ Jon 1952 1/2 ton with 1959 235 | T5 with 3.07 rear end
