Here is the fly wheel with the holes drilled in it for the everflex coupling, it also has two line up pins in it to make sure it's lined up perfectly centered.

Here is the everflex coupling.

We also had a centering shaft made for the flywheel.

Here is the everflex coupling on the flywheel with the center shaft.

Here is the centering shaft. Go back to my main UH-18sp page.