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Lowering a 4x4 Bronco 2


Gonchar

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1989
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I've got a 1990 Ford Bronco 2 4x4, and I'd like to lower it. As far as I know, no one has done this, so when I google ways to do it, I only get ways to lift it. I was thinking about using lowering springs, but I don't know enough about them to do that. Also, since I'm on a budget, bags aren't an option. I thought I saw a lowering kit for a 2wd Bronco 2 earlier. Would I be able to use that?
 


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kunar

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There's not much room before the beams get into the bump stops. even if you remove the bump stops, youre only gaining an inch or so before the beams get into the frame. also, when changing ride height on a ttb, you can only go an inch or two before you need to move the pivot point of the beam. there's only so much room for adjustment in the camber.

it's a novel idea, ive thought about it myself. researching how to lift the ttb will help you learn what's going to change and what you'll have to keep an eye on. look in the tech library and search the forums, there's a lot of info out there on ttb geometry and how ride height affects things.
 

alwaysFlOoReD

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I've thought about this. The ttb axle beam has an approximately two to one length ratio on either side of the spring. Think of a see-saw with the spring as the pivot. If you use a 4" lift bracket with the original spring, the wheel will move up ~2" [relative to the frame]. You will need to get an alignment. I haven't actually measured what I got but I did run my race truck like that for a bit.
 

Gonchar

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Location
International Falls, MN
Vehicle Year
1989
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L V6
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
275/65R15
My credo
Everything happens for a reason
There's not much room before the beams get into the bump stops. even if you remove the bump stops, youre only gaining an inch or so before the beams get into the frame. also, when changing ride height on a ttb, you can only go an inch or two before you need to move the pivot point of the beam. there's only so much room for adjustment in the camber.

it's a novel idea, ive thought about it myself. researching how to lift the ttb will help you learn what's going to change and what you'll have to keep an eye on. look in the tech library and search the forums, there's a lot of info out there on ttb geometry and how ride height affects things.

What's a ttb?
 

alwaysFlOoReD

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Make / Model
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2WD / 4WD
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ttb = twin traction beam, used in ford 4x4's from 1980 thru late 90's
tib = twin I-beam, used in 2 wheel drives from [IIRC] late 60's to late 90's.
 

Gonchar

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Location
International Falls, MN
Vehicle Year
1989
Make / Model
Ford
Engine Type
2.9 V6
Engine Size
2.9L V6
Transmission
Automatic
2WD / 4WD
4WD
Tire Size
275/65R15
My credo
Everything happens for a reason
There's not much room before the beams get into the bump stops. even if you remove the bump stops, youre only gaining an inch or so before the beams get into the frame. also, when changing ride height on a ttb, you can only go an inch or two before you need to move the pivot point of the beam. there's only so much room for adjustment in the camber.

it's a novel idea, ive thought about it myself. researching how to lift the ttb will help you learn what's going to change and what you'll have to keep an eye on. look in the tech library and search the forums, there's a lot of info out there on ttb geometry and how ride height affects things.

What do you mean by "lifting the ttb"? Will I have to move all of that upwards just to lower it? If so, I'll just leave it at stock height
 


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