Fuel Pump Help!!

Need to replace the mechanical fuel pump on my 1965 Dart Gt. with Charger 273. Have not been able to find a fuel pump at any of the parts houses. Have even taken in the Mopar part number (2495527) but still no luck. The fuel pump I have has a straight rod with the end angled down. The one at the parts house are not straight. Every one of them has a "dog leg" about half way down the rod with a slight angle at the end. The rod itself is about 1/2 to 3/4 of an inch longer on the new one than the old one. Will this fuel pump work? If not can someone give me a good part number?
Thanks!!