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Poly bushings for front end suspension stops ?

Cranky

Cranky

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Since these are much harder than stock rubber ones, will there be any noticeable difference when the suspension gets into them? Everything else will be stock type rubber...
 
don't do it. use the rubbers poly is nice for track use but the street i say no. they last longer and look hi-tec but the ride does change. but more people and aftermarket are using them and will more than likely will have them on my ride. but if you are looking for a soft feel go rubber. that doesn't sound good lol
 
Agreed. Don’t do it. I did the urathane bushing thing in a CJ way bitd. Even as a 20 year old kid I hated it. Translated all the drive noise right into the cockpit.

It’s one thing if you need handling. But let’s be honest, little cushion for the pushin is nice too.

Edit—-

My car came with poly bump stops. It’s like you don’t have any.
 
when you say "poly bushings" do you mean poly bump stops, or bumpers?

I just purchases a set of energy suspension brand urethane bump stops which I'm about to put on when I completely rebuild the front suspension. I was curious on this as well and have not installed them yet, but the research I did told me:

- yes it will be harsher than the original rubber when they hit, but they still provide some cushion and its not gonna do damage to anything.
- one point to consider is that the bump stops rarely make contact during normal street driving
- people seemed to like them in general based on internet reviews
- some people said they might be unpleasant if you are doing a lot of off-roading or if your car is lowered (the bumps stops make contact more often in these scenarios and could get annoying)
 
Had also poly bump stops , they broke after about 500 miles, went back to rubber, no problems.
 
PST makes the poly graphite stops, a little less harsh than straight poly.
 
Evan Frucht said:
how harsh were the poly bump stops when driving on rough roads or speed bumps?
Click to expand...
It was after i changed them back that i noticed that the rubber ones feel less harsh. Much depends of course how deep the pothole was.
 
The Major Auto Manufacturers spend billions designing cars, and they all (or at least most) use rubber bushings. Why would anyone think that they are smarter than the billions of dollars of invested time and energy, for a road car?

Stay with rubber my friend, and you will be much happier. I've been there and tried poly....it was not a nice experience.
 
I would think that a harder bump stop would be unnecessary and the least of my concerns.

The point IMO for using polyurethane/polygraphite is to make the handling less sloppy.

A harder/earlier bump stop would only come into play under extreme upper travel.
 
kiwigtx said:
The Major Auto Manufacturers spend billions designing cars, and they all (or at least most) use rubber bushings. Why would anyone think that they are smarter than the billions of dollars of invested time and energy, for a road car?

Stay with rubber my friend, and you will be much happier. I've been there and tried poly....it was not a nice experience.
Click to expand...
Why? Because they want you to have a cushy ride.
Remember the engineers recommended 26 psi in Ford Explorer tires and we all know what happened with that.
 
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