Assuming you have a manual transmission now, your pilot bearing, throwout bearing, flywheel, bellhousing, clutch linkage, and clutch fork will work just fine.

You will need:

Mid-Shifter shifter location, especially with a bench seat
Bellhousing Adapter ring
Speedometer drive adapter
26 spline clutch disk

You’ll need to modify your driveshaft to install the Ford slip yoke, and shorten your driveshaft accordingly.

You’ll need to move your crossmember rearward, and drill new holes in the frame for the crossmember to frame bolts.

The transmission will fit into your tunnel, however you’ll likely need to open up the shifter opening a bit.

For the earlier trucks, 67-72 era, auto to manual swap:

John Lawrance at Brothers Truck Parts in Corona CA provided the following information to me:

Here are some installation pics from an 82 Chevy truck with the diesel, with the 16.75” shifter location, with a 2” offset. Generally, you don’t need the 2” offset. This customer already have a 2” offset shifter on the Muncie, and wanted to utilize the existing shifter opening.