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Suspension Help for 37" Tires

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Sashainvegas

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I just completed basically what you are trying to do minus some details, but from a SAS model. Running “37s” on a -12mm offset wheel with eibach coilovers and zone UCAs. While the UCA may not be necessary (I don’t off-road), for the price it seemed like a no-brainer for me. I also did track bar relocate.

before and after

3EF30C4C-056A-4D61-8389-39D2C0786A41.jpg
What. A. Fucking. Build. You just absolutely nailed this.

Re: UCAs, my thinking is the exact same. If they're dropping the suspension, might as well throw some in for what they cost. I'm just a little lost on what kind are compatible with what I'm trying to do. I'll likely PM you with a couple questions about this build. Really outstanding.
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Mike leggiero

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Ford Bronco Suspension Help for 37" Tires 1000000873
both have 37 green one 2 in rc spacer the blue one 2.5. tires terramax rt the green one haa a 1.5 wheel spacer
Ford Bronco Suspension Help for 37" Tires 1000000804
 

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Sashainvegas

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I just completed basically what you are trying to do minus some details, but from a SAS model. Running “37s” on a -12mm offset wheel with eibach coilovers and zone UCAs. While the UCA may not be necessary (I don’t off-road), for the price it seemed like a no-brainer for me. I also did track bar relocate.

before and after

3EF30C4C-056A-4D61-8389-39D2C0786A41.jpg
Question for you. Did you do the JKS (or any other) body mount kit and cut the crash bars?
 
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Sashainvegas

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1000000873.jpg
both have 37 green one 2 in rc spacer the blue one 2.5. tires terramax rt the green one haa a 1.5 wheel spacer
1000000804.jpg
I'm curious about whether you cut the crash bars and did a body mount kit. Thanks.
 

Mike leggiero

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I'm curious about whether you cut the crash bars and did a body mount kit. Thanks.
no just crash bars removed the green one jas a 2in rc lift with 1.5 wheel spacer the blue one 2.5 lift wheels -12 offset the tires 37 12.5 but they run skinny that why i dont touch of rub . tires terramax rt
 

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Yeah, I would recommend true 35" (34.8") tires over 37's, they look really similar, cost a little less and fit better.
And you could probably score a GREAT deal on sasquatch take off. For some strange reason people always say the tires on my Wildtrack ((Sasquatch) 315/70 GY Territory) look bigger than tires I had on my Rubicon X (315/70 BFG KO2) even though they're the same size.
 
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Sashainvegas

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I apologize in advance, fellas; I know this is probably covered in a hundred places, but i just couldn't find an on-point answer. So let's start from the beginning. A vintage Bronco has been my dream truck since i was about 7 years old. Very recently, I purchased a base '25 Bronco with the intention of tuning and modifying it with aftermarket parts so as to look like the Broncos of my childhood that I can't bring myself to pay for and drive every day. I'm stuck on the suspension because I don't know what the hell I'm doing with these things. I don't off-road--it's the deal i made with my old lady to buy the truck after a friend of mine was paralyzed a couple of decades ago on a completely unconnected ATV accident, but that's the price I have to pay to continue to own my house and buy the truck. So with that in mind, I'm hoping for some help from you folks in figuring out the combination of parts I'm about to list below and whether they would work for what I need--37" tires, on 17" wheels, in a build that looks something like this: (https://www.liftedtrucks.com/wholes...d-Bronco-ac62688cac1857b175b143bed729f5c7.htm.

Here is what I'd like to do. I spoke to a rep at Rough Country and they said that if I run the Rough Country lift kit below, with the fenders and quarter panels below and the aftermarket tubular bumpers I've got picked out, and I remove the crash bars, I shouldn't have any problem running 37" inch wheels. Does this make sense to you folks with experience doing this?

https://www.roughcountry.com/produc...RX4CswvUAb_KSqQsNmyCgpWf8g74RVGBoCpPUQAvD_BwE (M1R Resi Loaded Strut Lift Kit - N3 Struts)

https://advfiberglass.com/products/...-door-rear-quarter-kit?variant=41599305089089 (quarter panels)
https://advfiberglass.com/collectio...25-ford-bronco-fenders?variant=41599251382337 (fenders)

Next, I've been advised to combine with this with some upgraded upper control arms, but i don't know whether to do upgraded OE arms, or arms with some lift. What I would like to avoid here is using spacers, that look like they're putting some tweaking pressure on the suspensions to me, and I don't know how that priority fits into the rest of this. Any help on what is best would be appreciated.
How it ended. Thanks.

Ford Bronco Suspension Help for 37" Tires IMG_9519


Ford Bronco Suspension Help for 37" Tires IMG_9518


Ford Bronco Suspension Help for 37" Tires IMG_9517


Ford Bronco Suspension Help for 37" Tires IMG_9514


Ford Bronco Suspension Help for 37" Tires IMG_9513


Ford Bronco Suspension Help for 37" Tires IMG_9512
 

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Flying Skunks

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I went with the 8" fenders . Love how they changed the look so much
Ford Bronco Suspension Help for 37" Tires 20250311_141055
 

kodiakisland

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I've got ICON coilovers with stock black diamond steelies, no spacers and 37s. No issues.

Not as pretty a route, but it works.

Ford Bronco Suspension Help for 37" Tires IMG_0636
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