are you looking for et or looks...I pick up more than 1.5mph in the 1/8. By blocking off the grill...I can't say that I seen much at all with the spoiler..I think it needs to be bigger.the next one I make will be fiberglass and installed with Zeus fasteners... that way I can remove it to get a jack under the front of the car

BACK-SIDE

I am looking to pick up whatever I can and I don't think it will look worse, I think yours could be taller whitedart. That's great info on blocking off the grille!

I like that one on my next duster, cool how it attaches easily

How about using a truck bug deflector and just mount it upside down under bumper. Some aerodynamic and deflect wind.

You could get some 1/8" ABS sheet from a plastics supplier. Smooth on one side, pebbled on the other, and in colours too. Cuts with normal saws, can form in a brake, and will heat form and retains shape. Plus it glues with ABS plumbers glue, marvelous stuff, and not too pricey.

You're trapping air between the spoiler and the bottom of the bumper, which then bleeds off the each side.
If the spoiler's upper end were closer to the front edge of the bottom of the bumper there would be far less trapped, and if it were really forward you could close off some of the grill.
If it's just a plow, the center should be a "V".

Front spoiler/air dam off a square body s10 fits under a duster really well and doesn't look hokey af either.lol. Obviously need to fab some brackets...
Good Luck

I may try the s10 thing, those are everywhere in yards around here.
I'm really just looking for any little edge I can get. I plan to make something, probably aluminum as Brad said my brother and I are sheet metal workers so we have access to every metal working tools you can imagine

I found an existing spoiler that fit nicely after some trimming;

Probabaly have different sources over there, but mind sharing what that came off of?

I like this one...

I was checking out this guy as a possible source for a Challenger spoiler; here's his Duster page link.

Not as large as I was expecting, but it'll help give you an idea of what to look for.

The one on that green duster I've been told is from a chevy II

This is(was) a NOS 'Richard Grant' spoiler for a '80s Mercedes.
Not something you'd find everyday, even over here.

It happened to be correct width for the car and was easily mounted by 7 screws and bolts.
The material is a fairly hard plastic, so I probably don't want hit a curb with it as it most likely might crack.


Its real effectiveness can be debated, as there's still quite an air gap below it, but for me it also had an estatic function to hide the open view to the suspension of the car.