Does anyone know if the transfercase to tranmission adapter is the same on the E40D, AOD and C6. I guess what I'm asking is the back of these transmissions the same shape and bolt pattern. I know the front is the same because they all bolt on a smal block. Ive seen all of these bolted to a 1356 tranfercase, but I dont know if the 6" spacer/adapter/frame mount is the same.

 

the E4OD/C6 adapter maybe the same. not sure about the AOD.