I may be asking something that has been covered if so just give me the link. I am trying to build a doubler and the two cases I have are a chevy 203 that bolts to my turbo 400 and a 205 that came off a 4 speed. Here is what I know the 205 is a 10 spline, so how can I adapt the 2 cases together. I know i can buy the kits but I have acess to a machine shop so I am going to try to make all the piecess. We have built a couple of ford doublers but quickly realized that chevy's are different.
