37’s and Fox Suspension on Bronco Outer Banks @ King of Hammers (KOH)

[North7]

Thoughts on a track bar being enough to safely run 37s?

This thread/post shows the new track bar they put on:
https://www.bronco6g.com/forum/thre...ach-springs-37-tires.11835/page-9#post-429186

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[Broncoak]

This thread/post shows the new track bar they put on:
https://www.bronco6g.com/forum/thre...ach-springs-37-tires.11835/page-9#post-429186

Don't forget the additional safety wrench for good measure. ?

 

[Used2jeep]

oh man this is a heckin' chonker and I NEED IT

"
Heckin' Chonker | Fair State Brewing Cooperativehttps://fairstate.coop › Stout
A big, luxurious brew. Blended bourbon barrel-aged pastry stout with vanilla. Tasting Notes. Big, sticky, vanilla, oak, spirit character, chocolate
"

 

[ATLBronco75]

I feel like everyone concerned about brakes doesn't understand how anti-lock brakes work. If you can lock the brakes you have enough braking "Power." Now it's up to the Anti-lock braking controller and the rubber compound/construction of the tires to stop the vehicle. Power as a function of stopping wheel rotation is not much of an issue.

Now if you want to talk about heat and pedal effort we can have a MUCH longer discussion.

 

[Jwall]

I feel like everyone concerned about brakes doesn't understand how anti-lock brakes work. If you can lock the brakes you have enough braking "Power." Now it's up to the Anti-lock braking controller and the rubber compound/construction of the tires to stop the vehicle. Power as a function of stopping wheel rotation is not much of an issue.

Now if you want to talk about heat and pedal effort we can have a MUCH longer discussion.

I went from 31’s to 37’s on a Jeep Jk. I’m still on the stock brakes...granted there is a little more effort to stop (not bad at all, just a bit more input), i have never once been worried about not being able to stop. The one legit panic stop i had to do, the tires were the limiting factor, NOT the actual brake components.
That being said, I’m sure are quick to fade/overheat and warp, but i personally haven’t had any problems. Brakes are something i don’t plan to upgrade on the bronco either...and i will upgrade to 37’s.

 

[AcesandEights]

I feel like everyone concerned about brakes doesn't understand how anti-lock brakes work. If you can lock the brakes you have enough braking "Power."...

Now if you want to talk about heat and pedal effort we can have a MUCH longer discussion.

I think this is the least understood, but probably most important aspect. The brakes will stop you in a panic stop, albeit maybe not in as short a distance; however, the brakes when used off road or stop and go traffic will fade. If the Bronco is an off road rig, and if people are going to use it in that manner, what is more important than the idea of a panic stop is the need for a system to reduce fade. I don't doubt the brakes are up to the task for normal driving conditions; although, people really need to understand the impact of larger tires, rolling resistance, ability of the ABS to interpret and stop the rolling. Anyway, off road is where I would wonder about how the overall system will work with 37" tires. It won't be an issue unless you're crawling and trying to stop or slow the vehicle in 4-low when there is a lot of torque/power pushing those tires to turn at the same time you're trying to brake and slow them further. What will cause the most issue is doing this over and over, over some given distance. As you "crawl" through an area, if you ride the brakes, you will (over)heat them and they will fade (reduce braking ability). People need to be mindful of that and pay attention. If you're driving steep switchbacks, stop, rest, cool down and use your lower gears for engine braking.

 

[Apples]

Now if you want to talk about heat and pedal effort we can have a MUCH longer discussion.

This is what most people are talking about. It's less about the emergency brake where you're going to be standing on the pedal anyway, and more about the not quite emergencies.

If someone decides to pull out in front of me, has the change in pedal effort gotten to the point where I can't reasonably stop the vehicle without standing on pedal.

It's not something that can't be overcome. I'm currently driving and Xterra that's easily 2000lbs heavier than stock, rolling on 35s, with stock brakes. In normal circumstances, the brakes work fine. I'm confident in an emergency brake, the brakes would get it done. Everything in between requires me to be just a little more vigilant because the effort to get the truck to stop short without kicking the ABS into gear is noticeable.

 

[Broncoak]

"
Heckin' Chonker | Fair State Brewing Cooperativehttps://fairstate.coop › Stout
A big, luxurious brew. Blended bourbon barrel-aged pastry stout with vanilla. Tasting Notes. Big, sticky, vanilla, oak, spirit character, chocolate
"

""

 

[TeocaliMG]

Not to steer the conversation too far off course, I should mention that brake power is essentially how much heat you can transfer from the moving vehicle to the pads/rotors. (this is the same heat that will effect fade). This will remain constant. Larger wheel diameter will require a slightly higher brake torque, and this torque is now applied at a slightly lower wheel speed so the power dumped is constant. Brake feel may be different but so long as you haven't added sooooo much mass to the total vehicle that the brake power cant keep up with the traction limitations you will be fine.

 

[Used2jeep]

""

 

[TNcoupe]

You can stop a 1970 Bronco with 37s on it with 4 wheel no power drum brakes, pretty sure these can handle it.

 

[@BadBlueBronco]

This thread/post shows the new track bar they put on:
https://www.bronco6g.com/forum/thre...ach-springs-37-tires.11835/page-9#post-429186

Ya I saw that, but do we think that will add enough strength to safely use those 37s or do we think an upgrade to chrome molly axels are in there short future?

 

[MrJoe]

You can stop a 1970 Bronco with 37s on it with 4 wheel no power drum brakes, pretty sure these can handle it.

"Can"... but hated it. I had to add a booster. 37's and drums were a bit**...

 

[ZackDanger]

Not to steer the conversation too far off course, I should mention that brake power is essentially how much heat you can transfer from the moving vehicle to the pads/rotors. (this is the same heat that will effect fade). This will remain constant. Larger wheel diameter will require a slightly higher brake torque, and this torque is now applied at a slightly lower wheel speed so the power dumped is constant. Brake feel may be different but so long as you haven't added sooooo much mass to the total vehicle that the brake power cant keep up with the traction limitations you will be fine.

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