The main advantage of poly for the rack bushings is the fact they're not affected by oil and grease. Get a car with an oil leak (in other words, all of them if they're this old and bought secondhand) and the bushings are just falling apart usually.
poly subframe bushings kit
- Thread starter ronniek
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Ronnie do you offer all of your bushes in the hardest black compound? I have energy suspension bushes in my control arms which are black but I'm not sure what they are rated at. I'm sure someone can chime in...?
Reading on them, they say that in the case of E.S., the two colors are just for personal preference, and don't reflect a difference in hardness.spiller;1823538 said:
One thing I didn't know, though, was that E.S. generally always impregnates their black poly parts with graphite to for self-lubrication. Had I known this, I
would have gotten all my bushings in black instead of red. If anyone has the black suspension kit, maybe they can confirm that it is indeed graphite impregnated.
lol, figured you understood the Q, and also figured id have no way of telling due to my very limited understanding of poly bushes.
Ronnie, do the subframe bushes require any lubricant, and is it extra to make them in the black density?
Ronnie, do the subframe bushes require any lubricant, and is it extra to make them in the black density?
Only some of ES's black bushings have graphite in them. There is another company that does that to all their stuff, but I can't remember their name (and they don't make parts for our cars).
Yeah, i dont see as much need for that feature in subframe bushings, but control arm bushings, yes.