You will have to use a Saginaw pump.The hoses need to go under the battery box.The Federal/Thompson pump have the pressure and return fittings in the wrong location.You will also need to change the return fitting on the centering valve.Use one from anything that used a Saginaw pump.It exits almost parallel to the box where the earlier is about 90* and interferes with the return hose being too close to the manifold.Took me a while to figure it out but everything now looks factory.