Manual Transmission Advice.

The FIRST question you gotta ask is, carburetor or efi? If you'll ever go factory style efi, that will govern your flywheel choice as you would need crank position notches.

I ran a straight oe four speed, and that takes a 130 tooth flywheel, balanced for the 5.9 (NOT the 360).

If you want five gears, you can look at the passon five speed that is effectively a drop in, or the 5/6 speed late model trans that requires more specific companion parts.

I ran the diaphragm clutch and have had zero issues. It's more street friendly, from what I've heard, but I've not driven a three finger clutch in years.

If you're running lower final drive gears, consider the overdrive, but I wouldn't, if you're budget minded and don't have them already.