Suggestions for making a rear diffuser from scratch?

any progress on this?

im also making one for my 86. but my current setup is primitive to the max… so no pics lol

im trying to emulate the Garage Fab one available from ft86speedfactory.

but also bringing in the rear spats. Ive made the full flat bottom to come from the front Aluminum engine bash plate all the way back to the diff housing.

Im just stuck on making a mold with lines i can agree with.

heres a snap of the full bottom plate. its very pretty… lol but its going under the car.

.225 thick. super rigid, but i think its a tad overkill. untrimmed the total weight came in at 38 lbs. its at the waterjetter getting cut this week.

Oh, sweet! No, I won’t even be getting started on this for like 2 more months.