Customs 50 Merc/Ford Front Seat the Same?

Anyone know if the width and mounting points for the front seat of a 50 mercury and 50 ford shoebox the same?

 

I can say with first-hand information that they are not a direct fit. The Merc seat is wider than the Ford seat and they mount to the floor totally different. That said I have a 49/50 Merc split front seat that can be bought. If this helps send me a P.M.

 

Surprisingly few parts are a direct fit between Mercury and shoebox Fords.