I have had some Function7 rear lower control arms before and loved them; they were the polyurethane bushings. Since then Function7 has come out with a set that has spherical bearings. Are they worth the additional 100 dollars? I don't track my car, nor do I plan to in the near future, just daily driven.

Let me know your thoughts and experiences with the two. Please and thanks!

 

I have never driven a car with them in the lca's but i have in the rear trailing arm bushing.
It does make a difference, and i would say its worth it. But if you are only daily driving your car, i wouldnt. Persoanly i dont see the point.
I would never spend the $100 on it myself. Sperical's also wont last nearly as long.

 

I wouldn't recommend spherical bearings unless it was a track car or one that atleast saw an occasional track day. They have nothing to absorb vibrations from the road and wouldn't make for a very fun daily driver. NVH is a bad thing in a driver.

 

yea i would def stick with the polyurethane if your not going to track the car, you are not going to benefit that much from the spherical on a daily driver.

 

We do not recommend spherical bearings on a daily driven car. You'll find the benefit/cost to be very low.

We spent a lot of time getting our poly bushings "just right" before we first released our arms for sale in 2003. Our bushings are designed to mimic the behavior of spherical bearings without the associated cost, and they last longer than the spherical bearings too. There is a small amount of compromise in terms of performance as you would expect, with the poly bushings.

If you insist on changing out to spherical bearings, we do offer a retrofit service ($100 plus shipping) for your current arms. We prefer to perform the service instead of just selling the retrofit parts because it ensures that the work is done correctly.

I hope this helps you make the correct decision.

-A