This may have been covered in another Post, but I haven't found it. Is the Bellhousing pattern on the Duramax the same, or different than the older Chevy/GMC Engines?
It is the same as all older small blocks, big blocks, and diesels. It has a few extra holes, one at the very top, and 4 at the bottom. Older transmissions will bolt up though with no problem.
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