I bought a 2007 Sentra used 26,000 miles and I went to get a 4 wheel alignment, due to a slight pull to the left. I found out that the rear alignment was .43 left rear wheel and .33 right rear wheel.
Specs were -1.2 to .20
I also found out that it was a manufacturer defect and Nissan doesn't acknowledge the problem and they do not put out a shim kit to correct it.
I ended up going to Napa online and ordered shims one .40 and one .30
for $32.00. Install the shims $98.00 and now all four wheels are with in specs. The car drives straight and I am happy. I just don't understand why honda acknowledged their problem with the civc and they put out a shim kit and repaired the affected vehicles. I am also concerned that there are no camber and caster adjustments for the front end.
I am not going to buy another nissan because of what I have had to go through. The loss of customers will eventually get them to improve on their lacking customer service.

http://forums.nicoclub.com/zerothread?id=367820

Is it normal to need a 4-wheel alignment at only 25,000 miles? If so, I am hoping that I won't find that the alignment measurements are off like mentioned by another user, requiring me to get shims installed.

My tire tread wear measures 7/32nds on both front tires, and 6/32nds on both rear tires. If alignment off, would the tread wear this even?