Ok, first off I want to say hello to everyone. First post here, and look forward to many more with you guys! Looks like you sure know your stuff here..

Have only owned the car for about 5k miles. 2004 SRT-4. 105k miles. Only thing aftermarket is solenoid delete, WG, HKS BOV, CAI, custom 3" exhaust, braided fuel lines and FPR, and SAFC-2 (I know, it needs to be gotten rid of).

Ok, i replaced the tires a little less than 3k miles ago. A full set of Nexen N5000 Ultra High Performance stock tire size. I recently noticed bad wearing of the rear tires, while the front two still look brand new. The tread on rear tires is approximately 50% in only 3k miles, a little odd I think. My first thought was alignment or over-inflation, but upon further inspection, it isn't uneven wear (all tires are checked routinely for proper inflation). Both rear tires are worn EVEN all the way around on both tires. Can anyone lead me in the right direction? I was told that bad shocks/struts would cause this.. the ride is a little stiff, that is the only thing I can think of. Any help would be greatly appreciated, thank you all in advance!