I have posted an add in the engine section classified section for a new condition 1987 Cavalier GM Factory Service Manual. It also includes the Electrical Diagnosis supplement manual. In addition, I will include the original GM exterior parts catalog pages for 1982-1987 cavaliers. My 87 cavalier has been sold, so I do not have use for the manual anymore.

I have included a picture of the manuals here: http://i932.photobucket.com/albums/ad168/tommypics01/1987%20Cavalier%20Service%20Manual/PC220329.jpg

Tom