I working on same kind of deal just now, I have 300e 86, differential game from 1989 Ford Thunderbird just little bit bigger than original. I have to make custom cv joint shafts, and drive shaft, I use Ford Differential because is easier to find and lot of different gear ratios, cheaper too, I don't have pictures yet, I can make 190 series too is same kind deal if you need help. Check my homepage there is some pictures what I doing right now