My 2009 G37 Base Convertible recently received an Eibach Pro-Plus kit (EIB6388.880 - springs and sway bars). The car sits on 20" Vossen Wheels with 285/30/20 tires on the rear. Per the mechanic, the car's rear camber is off 3 degrees and the stock OEM arms don't allow for proper camber adjustment (the front aligned perfectly).


Originally, I had Stillen ship Eibach rear camber arms (EIB572260K), which they recommended, to fix the problem. However, these arms don't work for the convert. The Stillen rep thought I had a coupe, not a convert. From there, Stillen was unable to verify fitment of ANY product to fix the problem.


Can anyone recommend rear control arms that will allow for proper rear end alignment? Any help is appreciated!

 

No one makes them for the convertible it's ****in retarded

 

Thanks stevelam. My mechanic has a fall back solution. Apparently the OEM arms are too long. Therefore, they can be cut, shortened, welded and fashioned to work. No idea yet what it will cost, but absent an available product, that's where I am.

 

let me know how that turns out for u. i would love a solution to the tire wear issue

 

I hope your mechanic is a PE...

 

What do you mean, PE?

 

Professional Engineer

 

The OEM arms are TUBING.
I would not trust anyone to cut and weld those.

 

Thanks, TVPost. Turns out they are not modifying the OEM arms but rather Eibach arms (Part #EIB572260K). They are welding shock supports onto the arms. These guys to import-only work and the shop owner has 30+ years of experience, including custom fabrication. If they weren't confident about the solution, they wouldn't do it. Worst case, I just keep the OEM arms and burn more quicly through $300+ each rear tires. Kinda wish I knew about the rear camber issue before installing the Eibach springs.

 

just found out u can use spc g35 toe bolts to correct the toe on the rear of the vert .. thats what causes the tire wear.. cereal and lake have installed them and there rides are dropped without any issues..

 

You are lowered Steve? You will get wear on the side with 3 degrees negative camber (I'm currently lowered with eibach coupe rear springs and about every 3 months I dismount the tires and swap them side to side (directional tires).

 

no im on stock height but i still get the bad tire wear.. i belive it has to do with all the extra weight. my friend has a coupe and he has th einner tire wear but not quite as bad.. as for doing the tire swap thats exactly what I plan to do as well to get a lil more treadlife. Im currently gone back to school on the midst of a career change so anything to save a bit of coin is definitly a big helper. I really wanna lower my car but in all honesty Im waiting for cereal to install the bc coils to get an honest review from him on them.. then ill have more ***** to pull the trigger.. plus im afraid lowering will give me clearance issues with the ARK Grip...

 

My 3 degrees negative camber issue solved today. My mechanic was able to custom fabricate shock mounts onto the Eibach rear camber kit (EIB572260K). Rear camber is now 0 and looks great. Kit was ~$200 from Stillen and labor for fabrication and install was $360 (4 hours x $90 per hour). All things considered, I'm pretty pleased. Now that the rear camber is fixed, I may look to add spacers. Love the look of cereal2K's vert.

 

Please post pictures of this. This would peak alot of interest in this sub forum.

 

4WAS guys have a similar problem where the SPC arm's will not work. Their solution is to use the SPL arms that provide +/- 10 degrees of camber adjustment. For reference, the SPC/Eibach kit only does +/- 3 degrees. If this works it would be cheaper and easier than buying and modifying a set.