I have been told by Honda Canada Customer Relations that the design of the 2009 Civic rear suspension is the same as the 2006 thru 2008 design EXCEPTING the upper camber control arms that were replaced in 2008 and are subject to a TSB on the 2007 and 2006. The individual confirmed that if we load down the rear suspension to its designed limit we will "probably" wear our the rear tires. Same old, same old......I had hoped by upgrading our 2007 to a 2009 we could use a civic as our Snowbird transportation vehicle with out wearing out the rear tires. Snowbirds beware, you can drive your Civic but leave your suit cases at home!

 

I believe I came across your original post. Had you changed the upper rear arms with adjustable ones and re-aligned your rear suspension to 0 degrees camber and toe-in? Did it continue to help or were you still having tire wear issues to contend with?

 

By installing adjustable upper camber arms, setting the rear camber to 0.0 degrees and readjusting the rear toe SOLVED my rear tire wear. No and ifs or buts, worked great as I have put many many miles on the vehicle (2007 Civic EX) with lots of weight on the rear suspension.

 

As an update for this 2007 Civic EX. At 57,000 kMs I installed a pair of 3rd party adjustable rear upper camber control arms and set the camber at 0.0 degrees and the rear wheel TOEIN to 0.0 degrees. At 107,000 kM (50,000 kM later) I have had lots of good service from my rear tires, no abnormal wear at all, just great! I am thinking that the rear wheel geometry has less TOE change with rear suspension deflection at 0.0 degrees camber then at the factory -2.0 degrees camber or the TSB08-001 -1.0 degree camber.