Get the smallest half round chisel you can find. Start at the edge of the seal's metal shell and collapse it to the center in one spot. The seal will come out, no problem. If you happen to scar the housing a bit, some sealer will take care of that.

Half round chisel

BTW, in my experience Ford has always been defined as 'misery on four wheels'.

"We live in a time when intelligent people are being silenced so that stupid people won't be offended".