DragStuff

I don't know who makes 'em but does anyone know if the large wing you see on some duallies work and who might make them?

If your talking about those stainless steel wings they are made by Wingmaster they are called Turbowings.They make them for all trucks you have to mount some "runners " on the roof and the wing bolts to them.

Do they help mileage much?

They claim 1-3 mpg and 30% less drag and I think for pickups the dont require drilling into the roof they have some kind of "clamp on" system .Its been a while since I sold one Im guessing about $500-600.

I just priced one @$1000.00 they look nice but i can burn alot of fuel for that

That seems to be what I was thinking of and have seen. I recall a track system mounted to the roof that allowed you to adjust it. I assume it would mount with wellnuts or nutserts. Thanks I'll try to find on line or locally. by the way 85 Chevy dually, 454, TH400, 4.10 gear, 28' trailer=
little to no gas milage!! Old but tows great and don't need a computer to fix it either!

Goat hearder, 87 gmc crew cab dually 4x4 454, 4.10s th400 28' trailer I FEEL YOUR PAIN!!!!

I used to know it, sold my 87' 454 4:10 Crew Cab last week. Frankly I was very surprised at the number of calls I got on it, over 3 per day.

I bought another dually and suburban last week,same years, and am going to cut them apart and make a 6 door over the winter what did you get for yours john? mine has 90,000 mile on it but with the 4.10s as hard as it turns its like 190,000

I sold it for $3500, it was a straight truck with no rust, 180k miles on it w/good rubber.

I have 1 for sale its about a year old still in excellent condition,if anybody is interested $800 obo (it was $1200 new)