ORIGINAL: RealJeep

See...Those are two examples of spoilers, they create downforce on the rear end for traction. The "spoiler" on the HUMMER should be called something else because it probably doesn't do a thing for downforce.

ORIGINAL: D VADER

I don't think I totally agree with that. A spoiler on the Dodge Daytona Truck looked pretty good.

ORIGINAL: Ghostrider

My roomate had one of those...its a purely decorational spoiler. He said it about got ripped off more than anything. Plus if you remember that mythbusters episode where they tried to see if putting the tailgate down improved MPG but it turns out it actually hurt it, the wind at the point of the spoiler on the pickup truck is actually moving up or even forward from the pocket of air that spins in the truck bed. So it serves absolutely no purpose even sticking up that high.

As for the proper term..here is what I was always told..
The thing on a race car that pushes it down is a spoiler
The decorational thing on a consumer car that provides no downforce but looks like it shouldis called a spoiler
The thing on a consumer car that pushes it down is a wing
So that would yes be a spoiler.

ORIGINAL: HERHMR

If your still having second thoughts, here is a picture of one @ $232.50 painted + (shpg)?
http://www.wooddashexperts.com/custo...e.php?cat=5123

As for me, I couldn't reach it to wipe it with the chamois!!!