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It's not the toolbox. It's the junk you put in it............ If I had a box, it'd be like Noah's Ark.. 2 starters, 2 alternators, switch's, relays, etc.just in case. Then another toolbox for the tools to install them. I saw a truck on ebay the other day with a utility bed and thought HEEEEEEEEEEEEEEEEEYYY.........................
It's not the toolbox. It's the junk you put in it............ If I had a box, it'd be like Noah's Ark.. 2 starters, 2 alternators, switch's, relays, etc.just in case. Then another toolbox for the tools to install them. I saw a truck on ebay the other day with a utility bed and thought HEEEEEEEEEEEEEEEEEYYY.........................
Dave
One of the construction company's around me has a utility bed for sale. I go by it about once a week. Just think what I could do with all of those cubbys and cabinets. So much storage, I would have to go out and get more tools to fill it.
Then I come back to reality and remember that I like to eat too and fuel is already cutting into that. No more Red Lobster.
Now back on topic. Like the others have posted. Any added weight will cut into your fuel consummption.
They make an in-bed type that mounts flush to the inside of your bed rails and then they make the kind that sits on top of the rails. Either way, I doubt air flow would be an issue unless you have a small Toyota and mount a full size box in it and it overhangs 5" on each side. I would be more concerned about weight and what you put in it. At most, the box should only weigh 150# or so but you could easily put 1500# of stuff in one and that would make a difference.
I have two big Knaack job boxes in the back of my truck, they weigh a ton.(ok 875#'s)
I notice no difference in mileage but the ride quality and traction are much better with all that weight.
Then again with a Big Block and 4.10's nothing budges my fuel mileage except highway cruising when I stay out of the secondarys and don't use the throttle pump.....
WOW!
I'm turning like 3500 @ 75. But I'm also #7500 on 235/85 R16's
I'd imagine less weight would be a factor w/ a motor like the 302 trying to push a barn door like a p/u. But I think you'd be talking 1/10th's of a mpg.
Driving style will be the far bigger factor.
Just what are you thinking of carrying in there?
They did the whole mythbusters thing about toolboxes/tonneau's/tailgates.
I even think there's a thread here.
But I would rather believe facts, rather that stupid theatrics.
Are you old enough to remember the "Camm" tail styling epitomized by cars like the Opel GT?
Our understanding of fluid dynamics haven't changed much since Bernoulli.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.