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Advice Suggestions on Suspension

Wingo4x4

New Member
Joined
Sep 1, 2013
Messages
78
Loc.
Myrtle Beach
I am in the same boat. I have a 73 uncut bronco and want to use either the wild horse 2.5 or 3.5 suspension on it. What are the down sides and additional work you have to do for a 3.5 suspension. I want to be able to fit 33x10.50 tires on it, would that be possible for a 2.5 and a 3.5 lift?
 

Wingo4x4

New Member
Joined
Sep 1, 2013
Messages
78
Loc.
Myrtle Beach
cad2c42fcc683e48fafbc7bc853250d6.jpg
 

needabronco

Bronco Guru
Joined
Jul 2, 2004
Messages
6,411
Loc.
Prescott/Farmington
You could also buy a set of 2.5" coils and remove 2 leaves from your current 3.5" setup. It may be enough to level things out? I'd ask WH which leaves to remove. With their leaf packs that is a possibility. IMO Coils aren't expensive so you could play around to find what you want.
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
49,263
I am in the same boat. I have a 73 uncut bronco and want to use either the wild horse 2.5 or 3.5 suspension on it. What are the down sides and additional work you have to do for a 3.5 suspension. I want to be able to fit 33x10.50 tires on it, would that be possible for a 2.5 and a 3.5 lift?

Hey Wingo. Not so much "downside" as just the extra work (and associated expense of course!) of additional parts to make the rig maintain a more stock-ish feel. Mostly in the steering department.

1. That would be a dropped pitman arm and dropped trackbar bracket for starters.

2. Then, if needed or desired, an adjustable trackbar to fine-tune the axle's side-to-side position. Not critical, but an option.

3. Another option would be an adjustable draglink. While the dropped pitman arm will get your steering back close to center, it's sometimes necessary to fine-tune your on-center positioning. And that takes an adjustable draglink.

Neither of those two are "required" but can benefit either a 2.5 or 3.5 equipped EB.

4. Longer brake lines go from a desirable option to a necessity with a 3.5.

5. For street use, you can get away with the stock parking brake cables. But for wheeling you must swap in longer ones.

Driveshafts should not need to be changed for a 3.5" lift, but every once in awhile it's needed. If you haven't seen it here yet, we talk a lot about "every Bronco being different" and that's why what is only an option for one Bronco will be mandatory for another, or not even desirable for yet another.

That's about it from what I can pull off the top of my head. Mostly it's fine-tuning a vehicle that you're modifying away from stock, to bring it back to it's safe and comfortable performance levels. Just like changing diff gearing when going to larger tires. It will work without it, but it's SO MUCH better when you make the commitment to do it right.

Paul
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
49,263
Excellent suggestion by needabronco! That can really open up some windows of opportunity to the OP

Paul
 

DirtDonk

Contributor
Bronco Guru
Joined
Nov 3, 2003
Messages
49,263
The only stock height set with more than 5 leafs I'm aware of are BC Broncos 9 leaf.

Just came across this thread again and thought I'd add a bit that I forgot last year.
http://www.wildhorses4x4.com/product/Leaf_Spring_Kit_Stock_10pack_
We also sell a stock height pack, but with 10 leaves. Same concept, same tech.

I also forgot to add some details to what needabronco mentioned.
With our springs, you can typically fine-tune their height a couple of ways. If you remove the third leaf from the top, you will usually lose roughly 1.5" of ride height.
If you remove the bottom leaves, you typically get just the thickness of the leaf itself. So removing the bottom leaf will get you about 1/4" or so. The next two are pretty much the same, so you can net 3/4" drop in the rear by removing the bottom three leaves.

Removing the bottom leaves has very little effect on ride, handling and load capacity. Losing the third from the top however, will soften up the springs in addition to dropping the height.

The more you reduce the overall thickness of the leaf pack in the center, the more likely you are to change the pinion angle as well. So if you're running tapered shims, you might have to remove them or use some with a lower angle. Every truck is different...

Sorry to rehash such an old thread, but wanted to close up with a little more detail for future readers.

Paul
 

doghows72

Bronco Guru
Joined
Jan 5, 2005
Messages
2,036
Stay with the 2.5" lift and do a one inch body lift that way you don't have some much stuff to worry about like you do with a 3.5" lift.
Here is m 69 with the WH 2.5" SL and a one inch body lift. Wheels are 17" dodge steelies with 4.25" Bs tires are 265x75x17= 32x10x17. I could easily go to a 33x10x15.
 
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