This modification is known as the "typ4" mod as Russ (typ4 is his handle here) is the fella that came up with this 1st. He actually did the opposite.... he put a diesel ZF5 on the back of a 460. Anyway....... I used a 460 ZF5 on my 6.9 crew cab.... see below.....
Here are the "typ4" mods being made to the 460 ZF5: I used a drill press to make straight and true holes. The top two holes are in the same location and need to be drilled to 1/2 inch. Then bolt the diesel trans adaptor on the ZF5 to use as a template/guide for the other modifications.
You must be registered for see images
You must be registered for see images
I used a 1/2 inch 4 fluted end mill to machine the diesel bolts holes. The reason for this is that a standard drill bit would drift toward the overlaping bolt holes in the bellhousing. The end mill with a drill press will machine the new holes straight and true.
You must be registered for see images
You must be registered for see images
See what I mean about the benefits of using an end mill:
You must be registered for see images
Finished product:
You must be registered for see images
Heath