Hey there light chassis datsun fans!

Im trying to fit some 1200 sedan seats into my 1000 ute.

Ive made up brackets they fit etc but my delema is that the angle of the back of the seat doesnt allow me to push the seat back any further then all the way foward as they are touchiung the cabin rear wall.

My question is, Do 1200 coupe seat brackets ( the brackets attatching the back of the seat to the base) adjust the back of the seat angle or just flip them foward for passaanger access? If they do adjust foward then i will be on the hunt for said brackets !

I dont know how much of this quiery made sense but if any one could help i would be stoked!

Thanks Jake