help with seat install!

[turboaddict]

alright so the project continues !! i have a 89 csx interior im installing into my 87 csx, however i hit a stumbling block. i switched the seat rails over to the new seats( old completely differnt than new) however the new seats are about 3/4 " narrower at the attachment points. does anyone have a clean and sturdy solution ( read no hacking the stuff up) i.e. rails from a different car etc to make these fit? thanks guys!