My 292's oil pump pickup leaked at the pump and at the pan so I'm installing all new gaskets to take care of the problem.  Previous owner gooped everything up with RTV in an attempt to stop the leaks. 

The old neoprene seal that is compressed into the side of the oil pump looks like it has some small steel flanges on it.  The replacement one is just a neoprene donut without flanges.  Do I leave the steel flanges on the tube and just replace the neoprene portion or should the flanges be removed with the old seal? 

Thanks,

Nick in WI

'60 F100 with '62 4V 292 y-block