ClassicCar

I recently acquired a 64 pontiac starchief. I am having fuel supply problems. I put on a new fuel pump that ran for 1/2 hour in the garage and only two blocks down the road. There is a canister mounted on the front of the engine block resembling a filter on it has a line in from the fuel pump, a line out to the carb and a return line to the tank. After two new fuel pumps I never could get fuel to pump through this can. I can blow through it as easy as a straw. Hence, I bypassed it! Is this the cause of going through fuel pumps? I have been told that this is for releasing too much pressure on the pump back to the tank. The last pump worked fine for about 5 miles untill I stepped on it a bit then out it went. I am thinking that the pressure is blowing the pump? If I have to have this canister where can i obtain a new one, and obstruction isn't a problem with the old one anyway, just doesn't want to pump through it. It will fill it but no further? Any help would be much appreciated!

One other matter, I drove this car about 30-35 mph and the rear end vibrates like the wheels are about to fall off! Id this a rear end problem, maybe just needing greased? The car sat for 23 years before I obtained it. I have changed the rear tires, no help! Thank You!