ok here we go
1. remove seat from van and turn over remove the side plate (plastic) that covers the back til;t.
2. trim this plate as in photo https://i.servimg.com/u/f75/12/05/65/91/img_0010.jpg
3. also remove with grinder the screw mount as in photo https://i.servimg.com/u/f75/12/05/65/91/img_0011.jpg
4. grind the seat stoppers as shown in photo's
https://i.servimg.com/u/f75/12/05/65/91/img_0012.jpg
https://i.servimg.com/u/f75/12/05/65/91/img_0013.jpg
I hope this helps a few of you i know it helped my wife.
oh i almost forgot replace seat is a reverse of the removal proceedure.
dave