Quote:
Originally Posted by Vman455
The only OEM-designed spoiler on a tonneau that I know of was available on the 2005-06 Ram SRT-10. It differed slightly from the spoiler designed for the open bed:
Dodge claimed 150 lbs of downforce for the initial spoiler; I don't remember ever seeing a quoted figure for the tonneau spoiler. The open-bed spoiler also has a trough on the underside that Dodge claimed reduced drag, but they didn't specify by how much. |
Downforce would be bad.The truck is plenty heavy to begin with.
At DARKO,Spirit had around 2,083-lbs on the rear axle at 135-mph.
Just eliminating the separated flow and capturing the locked-vortex over the box will essentially kill all rear lift on a pickup.