im making a little project for my self in the hopes that it turns out good enough to use. i have a 8.5 rear out of an 85 pick up. and i wanna fabricate it up to fit in my 79' malibu. but i dont know angles or measurements on any of the perches or the upper knuckles.i know i have to cut the housing to factory specs to fit grand national axels, weld on housing ends for what i believe is late modle ford big bearing(torino) and im still searching for more info. if anyone has made there own rear or anything could you shoot some info my way. or any info would help. thanks kurt