Suspension Tech General discussion of suspension for the Ford Ranger.

Ranger Bouncy.

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Old Jul 25, 2018
  #1  
Firefighterranger's Avatar
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From: urbandale ia
Ranger Bouncy.

I got a 1996 ranger that bounces like a pimp wagon rolling down the road. I have replaced 4 shocks all the way around ive put one new leaf spring on, and had both new rear shackles. The driver side leaf spring front bushing is rusted. It will bounce multiple times until settling after hitting a small bump All parts i put on are stock. Any ideas its getting annoying feeling like a rag doll in it driving down the road.
 
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Old Jul 25, 2018
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Welcome to the forum

The shocks control the "rebound bounce" so not sure what you used to replace the stock shocks but they would be the wrong ones.

The springs, coil, leaf, or torsion, are suppose to bounce and will keep bouncing without any dampening.
Back in the horse and buggy days this was one of the draws backs of springs on wagons or ??
When powered vehicles came on the scene the rebound bouncing could cause loss of control, so had to be dealt with.
1908 was the first patent on hydraulic dampeners, what are now called shock absorbers

Basically a tube with fluid inside and some plates with holes attached to a shaft.
As the shock is compressed, the fluid has to pass thru the holes which slows down the compression, but not too much or the springs can't serve their purpose, to absorb the bump or dip using the vehicles weight.
Then when shock uncompresses the fluid has to flow backwards thru the holes which slows down the return and also serves to dampen the springs tendency to continue bouncing.

Building shocks is a science but also an art form since everyone has an idea of what a "good ride" is.
Some want a stiffer ride, some a softer ride, there is no wrong or right, that part is ART

Yours however is wrong, lol
Too much bounce is uncomfortable and can be dangerous when cornering.

You can get adjustable shocks

But first see if the springs are OK
Put you full weight on front corner of bumper and try to bounce the truck, it should move down a bit but not too much, if you weigh under 250lbs
If truck dips down alot then springs have a problem, they are too soft for the 2,000lbs weight on front axle
You can get inserts for coil springs that will stiffen them

Rangers weigh about 3,000lbs, 2,000lbs on from axle and 1,000lbs on rear axle, with no load in the bed
The springs are rated for this load, + 400lbs for passengers and light gear
So 200lbs on front or rear bumper shouldn't dip the springs too much, especially on the rear which has springs rated for an extra 1,000lbs(1/2 ton) load rating
 
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Old Jul 25, 2018
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Firefighterranger's Avatar
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From: urbandale ia

Motorcraft ASHV1048 Rear Shock Absorber Motorcraft ASHV1048 Rear Shock Absorber
is the rear shocks i put on so i dont know what would cause this bad of bounce would bald old tires do that?

 
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Old Jul 25, 2018
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Could the problem be is theirs no shackles in the leaf springs
 
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Old Jul 25, 2018
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Originally Posted by Firefighterranger
ive put one new leaf spring on, and had both new rear shackles..
Originally Posted by Firefighterranger
Could the problem be is theirs no shackles in the leaf springs
Which one is it, you put new shackles in, or there are no shackles?

But yes you must have shackles so the springs can flex, otherwise the truck will have a real hard and stiff ride
 
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Old Jul 25, 2018
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From: urbandale ia
i didn't mean shackles i meant hangers. i realize the guy i bought it from didn't put shackles in it.
 
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Old Jul 25, 2018
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I assume this is a "new" truck for you?

It may have spent some, or most, of its 22 year life loaded down with equipment in the bed or hauling heavy loads so the springs are just plain worn out.

You are there I am not.
Bounce on it and see if springs are tight or soft
New shocks can't really fix worn out springs

No on the bald tires, tires do absorb smaller bumps, but they would have to have noticeably low air pressure to cause any bouncing, or extremely high air pressure
 
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Old Jul 25, 2018
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Wait how are the springs connected without hangers? anyone else lost? Can you take pics?
 
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