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Leaf Springs

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Old 05-05-2009, 07:32 PM
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Default Leaf Springs

Would someone care to explain to me the advantages/dissadvatages of a leaf spring suspension and why the JK doesn't have it?
Old 05-05-2009, 07:38 PM
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Just a guess:
Coil springs give....
Better ride quality on the road
More articulation off road
More knowledgeable opinions welcomed.
Old 05-05-2009, 07:58 PM
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Leaf springs are just stronger. They can carry more weight than coil springs can.

In a passenger vehicle, such as the jeep, there's no need for leaf springs. The coils provide better ride and handling characteristics than leaf springs.

Leaf springs are better for use in pickup trucks or vehicles requiring higher load capacities.
Old 05-05-2009, 08:07 PM
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Originally Posted by wayland1985
Leaf springs are just stronger. They can carry more weight than coil springs can.

In a passenger vehicle, such as the jeep, there's no need for leaf springs. The coils provide better ride and handling characteristics than leaf springs.

Leaf springs are better for use in pickup trucks or vehicles requiring higher load capacities.
thanks! was wondering why it was on all of the dad's vans

also, saw them on the h3 so got me wondering
Old 05-05-2009, 08:17 PM
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Put 200,000 miles on a LEAF spring Jeep and you will have NO questions- believe me....
Old 05-05-2009, 08:53 PM
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Not sure if it's because leaf springs are stronger. Some pickup trucks have coils, too.
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Old 05-06-2009, 02:34 AM
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Originally Posted by ronjenx
Not sure if it's because leaf springs are stronger. Some pickup trucks have coils, too.
Ok, way to go with the upper extremities of the coil spring suspensions!

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Old 05-06-2009, 03:06 AM
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Old 05-06-2009, 03:29 AM
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Leaf springs are strong.

Leaf springs locate the axle which makes them cheap for manufactures to build (no links).

Articulation is limited by the length of the shackle.

Leaf springs can cause wheel hop when a lot of torque is applied.

Coil springs for an application like a jeep are far superior. Look at a "real" hummer. It has coils. The fake hummers are based on the GM pickup truck platforms and that's probably why they retain their leaf springs in the rear.
Old 05-08-2009, 12:47 AM
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The XJ's had leaf springs in the rear. On rainy days I could feel the back end slip a bit if I was giving too much gas.

You also see a lot of older Cherokees with sagging back ends ... typically the leaf springs (and/or shocks) have worn out.

Coil suspensions provide a smoother ride IMHO


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