First post here. My 15-year old son was recently given a 56 Buick Special 4 door sedan by a coworker of mine. Runs like a top but it otherwise leans more toward Rat Rod status. The seats are in rough shape. I found some “new” seats for sale on eBay out of a 56 Buick Century. Can I assume these sats will fit? They are 18 hours away and I’m having trouble getting the seller to respond to questions. Thanks in advance.