i want to do this seat belt converison just like the 88 and the 89 have on the pillers not on the doors and nw i have a 90 civic hatch what do i need to do in order to have this on my piller ?

 

i'mto do this in my 91 about .. i just grabbed the seatbelts out of a 93 civic and figure i'll weld some nuts to the chassis where the belt guides mount on. some big heavy ones at the top and bottom of each b pillar should do the trick.. thing i noticed was how the retractor mechanism bolts to the side of the car next to the rear seats, and its only bolted on from the factory with a couple measly 10mm bolts

 

i thought the 90-91 have the metal bar in the way and the 88-89 dont have any for the belt piller? u think it be hard to do or what bec i wanna loose weight on my doors lol