900 series passenger seat width

[doghead]

How wide is the 900 series passenger side seat cushion? Is it the same dimension from front to back, as an M35 or 809 series truck seat?

I'd like to know the backrest dimensions too.

 

[AaronW]

Base cushion is 41.5" X 19.5"

40" X 18" on my back cushion.

 

[doghead]

Thank you very much!

I wonder if I could use 2 seat backs(as the seat and backrest) for a project.

I have 40" of space to fill with a seat.