Alu-Cab drag & wind noise?

Hi All,

I've been considering replacing my rolling tonneau with a canopy on my 3G DCSB for more space and utility and like the look of the Alu-Cab canopy/topper (not the combine tent one).

I do however worry a bit if it would have significant wind noise or added drag as it looks like there's a decent amount of exposed, flat surface area directly behind the cab.

What has folk's experience been like with Alu-Cab?

 

Fill the gaps with pool noodles.
I know it sounds silly/stupid, but it works.
If really want limited noise, then take out all the interior from the rear. Carpet too (well, just peel it back) and use sound damping material. You can do the doors and front floorboard and center console.

 

I'm mostly wondering about the very front edge which sits a bit higher than and to the sides of the cab catching wind. Once upon a time I had a square tubing lumber rack and that thing oscillated like crazy when going above 50mph due to the wind hitting a flat, surface.

 

because the cabs had paneling/tubing tieing in from the front to the rear, and side to side, they really don't move at all. similar concept as 2x4 housing construction. the framing by itself is just a bunch of sticks stood vertically, the exterior paneling is what ties each stick to each other to reduce shearing loads.