Why Did They Choose Independent Suspension For 2021 Bronco? - Engineering Explained

[Spooled]

This is great YouTube channel if you haven't seen any of his videos!

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[Techun]

He really misrepresents the wrangler mpg, unfortunately.

 

[Spooled]

He really misrepresents the wrangler mpg, unfortunately.

Agree he should have stated that Jeep doesn't have separate ratings for trims like the Bronco does or that the Bronco has pretty aggressive axle ratios compared to the Jeep which affect highway fuel economy.

 

[Erock]

Well... I had a joke about codependency, but y’all killed it with MPG talk. Oh well, back to the 4dr thread

 

[Newbie]

Why Did They Choose Independent Suspension?
No Death Wobble

 

[Techun]

I don't think the gearing is hurting the hwy figures, I don't think the engines are spinning fast in top gear, maybe someone can fact check me. It's aerodynamics that kill the hwy numbers.

Agree he should have stated that Jeep doesn't have separate ratings for trims like the Bronco does or that the Bronco has pretty aggressive axle ratios compared to the Jeep which affect highway fuel economy.

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[Blackcat]

We have a 21 Wrangler Unlimited with the 3.6 and manual trans and 21 mpg is about the best I can get out of it, and that's on a 3 hour road trip. It's my wife's and she gets about 16 mpg, mostly short, in town runs. She MIGHT drive 10 miles a day.

 

[lakesinai]

I don't think the gearing is hurting the hwy figures, I don't think the engines are spinning fast in top gear, maybe someone can fact check me. It's aerodynamics that kill the hwy numbers.
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I would disagree, from personal experience with the 2.7 Eco engine in my F150. My highway mileage is 22mpg in real life, although round town is 16-17. The 2016 crew cab F150 has the stock tires, 275/65R18. It has, however, the 3.55 axle, very mpg friendly! It has a 6 speed automatic.

The lower trim Broncos, without the rear lockers, have the go-to ford truck moderate towing axle, the 3.73. These are rated at 21 mpg Epa.

My OBX has the upgraded transfer case with the rear locker is speced with the 4.27 axle. This used to be used only in high capacity tow vehicles, but it is known to get worse mileage due to the low gears. Sure enough, my OBX is rated lower EPA due to this, running stock 32" tires.

But wait, there's more! The non-sasquatch Badlands has the 4.46 axle, but the 33" tires help a little. But, dig the Sasquatch Bronco. It runs 35" tires, but is geared with incredibly low 4.7 axle, and gets the worst mileage.

Of course, we'll all find out when we get our vehicles. But my current F150, more of a Brick than the Bronco, get much better (4mpg+) highway mileage right now, and its EPA rating us higher, as well. I believe its mostly the fault of the Broncos low gearing.

 

[Techun]

I would disagree, from personal experience with the 2.7 Eco engine in my F150. My highway mileage is 22mpg in real life, although round town is 16-17. The 2016 crew cab F150 has the stock tires, 275/65R18. It has, however, the 3.55 axle, very mpg friendly! It has a 6 speed automatic.

The lower trim Broncos, without the rear lockers, have the go-to ford truck moderate towing axle, the 3.73. These are rated at 21 mpg Epa.

My OBX has the upgraded transfer case with the rear locker is speced with the 4.27 axle. This used to be used only in high capacity tow vehicles, but it is known to get worse mileage due to the low gears. Sure enough, my OBX is rated lower EPA due to this, running stock 32" tires.

But wait, there's more! The non-sasquatch Badlands has the 4.46 axle, but the 33" tires help a little. But, dig the Sasquatch Bronco. It runs 35" tires, but is geared with incredibly low 4.7 axle, and gets the worst mileage.

Of course, we'll all find out when we get our vehicles. But my current F150, more of a Brick than the Bronco, get much better (4mpg+) highway mileage right now, and its EPA rating us higher, as well. I believe its mostly the fault of the Broncos low gearing.

What speed is your f150 engine spinning at 60mph in top gear, and same for the bronco?

If you had a 3.73 rear in a first edition bronco, it wouldn't get any better hwy mpg because it would never be in top gear.

 

[RobCo]

Vehicles like this are not bought for the fuel economy, you want to be a tree hugger, get a Prius .

The independent front suspension makes more sense compared to the Jeeps antiquated technology. What color blue is this one? I don't see it on the build and price?

 

[BroncoAZ]

The 100# wheel and 35” tire setup on the Sasquatch doesn’t help mileage at all. The stock Badlands 33” are 81#. I’d guess the stock base wheels and 30” tires are under 60#.

 

[mjohnso3]

What color blue is this one? I don't see it on the build and price?

That would be lightning blue only available on the FE unfortunately.

 

[VelocityBrew]

But wait, there's more! The non-sasquatch Badlands has the 4.46 axle, but the 33" tires help a little. But, dig the Sasquatch Bronco. It runs 35" tires, but is geared with incredibly low 4.7 axle, and gets the worst mileage.

18 vs 17 isn't really that much of a difference

 

[Raptor911]

looks like a 1st edition so lightning blue

Vehicles like this are not bought for the fuel economy, you want to be a tree hugger, get a Prius .

The independent front suspension makes more sense compared to the Jeeps antiquated technology. What color blue is this one? I don't see it on the build and price?

 

[Tricky Dick]

The 100# wheel and 35” tire setup on the Sasquatch doesn’t help mileage at all. The stock Badlands 33” are 81#. I’d guess the stock base wheels and 30” tires are under 60#.

81 lbs, so the BL wheels are 30 lb? Where did you find that? I was looking at some wheels that are 23lb, that's enough difference to feel.

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