4 speed od or 5 speed

Very little tunnel mods (if any) are needed for the R154, and you just have to find the right V8 Dakota bellhousing.

Doesn't even need to be a V8 dakota. The V6s have the same bellhousing bolt pattern. I got all my stuff out of a 90 or 92 v6 dakota and it bolts right up to a SBM I have the flywheel, mini starter and bell bolted to my 318 to get it running but needed to buy a 5.9 flywheel to swap in my 5.9 magnum since V6s are balanced same as 318/5.2s