You know, I don't know why I didn't look at that picture of Dorfs sooner...
Here is your upgrade for the 4.0 Liter...
That's the distributor cap adaptor, distributor cap, and rotor used on the E.E.C. distributors from Ford
Try an '89 Ford Truck With 300 CID I-6 WITH E.E.C.
for the Cap Adaptor & Cap,
Try an '89 Ford Truck With 302 CID V-8 WITH E.E.C.
for the Rotor.
Hats off to Dorfs for posting the picture!
(credit where credit is due!)
So many cats, so few recipes...