A-arm bushings, Pros - cons?? Options

[East coaster]

What's the best setup for a street car?

Tarret bronze/urethane? (Sounds like a good idea, but never heard from anyone running them)

Needle Bearings? ( I worry about rust and maintenance issues)

Stock with 40K on them? (Has a low "trick" factor, but probably works good)

Delrin/urethane (squeeky........don't want them)

Ditto for rear trailing arm bushings????

[MattR]

Yep, you said it. Real cars have heim joints and spherical bearings...

(IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)


I do think on a street driven car , the absorption of stock rubber or poly bronze is better. Theoretically the bearings should rotate over every bump, but in reality, there are 3 axes of rotation to to compensate for (rotation in x-y-z). The bearings do a great job in one direction of rotation, but for the other 2, they dont do much. In fact, you have straight metal on metal contact. Normally with bushings the "give" in the rubber will absorb the bumps in the road so your chassis (and butt) doesnt have to.
Moral of the story: with bearings, all that force from the other 2 axes of rotation are being absorbed by the chassis, which isnt a problem on a track car, but it kills yur butt... especially if you're an old phart like me (3 months and I can legally drink!!!)

With that said, I've never been in a car with mueller's bearings. Only in street 996 gt3s (rubber bushed) and then track 996 gt3s (spherical bearings).