Seat back upholstery

[SSSSeanss@aol.com]

I had no problem installing the seat bottoms but when slipping  the seat back 
covers over the frame its a very tight fit side to  side.  This causes a big 
gap in the lower back area that even when  warmed up and stretched it seems it 
would be hard to get the lower back to stay  glued down after pressing it in 
place.  Plan is to place the other seat  back on top and weight it down to 
hold in place but wanted to see if anyone else  had seen this when fitting them.
 
Much thanks,
Sean Sexton
62 BT7