Solution42

Do you have anything rolling around in the trunk?

The drivers side endlink had loosened. I have the RSB set on hard and I originally torqued the endlinks to 40 ft lbs. That obviously wasn't enough. I applied more blue thread locker and torqued to 50 ft lbs. Now I can slalom like a mad man and no clunks! Definitely loving the bigger bar.

http://s3.postimg.org/od52euuhb/driver.pnghttp://s3.postimg.org/93577nyz3/passenger.png

I just installed this Whiteline bar on mid setting and now I am getting an intermittent clunk from the rear... Trying to track it down. I hope it's not the endlinks.

 

I retorqued everything and all is good with that... still getting the clunk though.

 

Noticed something from the pics above, Does the 3.6R have a different rear diff or just a finned cover?

Check to make sure the ends of the RSB and the endlinks are not contacting the lower spring perches. Maybe try a different setting on the sway bar to see if the clunk goes away. Also, I had one of the longer bolts supplied with my WL swaybar break when I did the install and I had to replace it with a higher grade bolt.

 

It is just a finned cover and should be the same diff as all Legacys, although possibly different final drive ratio, IIRC, the 3.6R is a 3.90 and the 4 bangers are 4.11 ratio. Subaru was probably anticipating higher torque with the 3.6R over the 2.5i and thought that the diff needed some additional cooling with that drive ratio. They did this on the 5th Gens too, so not sure why they didn't include the finned cover on the GTs.

I just installed my Whiteline RSB and can confirm I get a clunk when doing an extreme slalom/left right quick loading. How ungodly tight do I need to make the stock endlinks to kill the clunk