One problem related to steering pinion shaft has been reported for the 2008 Jeep Wrangler. The most recently reported issues are listed below.
Purchased 2008 Jeep Wrangler and at around 3600 miles noticed severe steering issues. Steering was wandering and has become erratic. Excessive side to side movement, excessive jiggles on small bumps at lower speeds. Dangerous steering at 65mph on highway to the extent that vehicle swerves into next lane unexpectedly. Jeep refuses to acknowledge dangerous issue with 2008 and 2009 steering issues that involvesteering gear box, shafts and ball joints. Second opinion from outside agency stated gear box is junk, shafts need replacement due to faulty engineering from Chrysler. Many many Jeep owners are having these issues and involved in accidents to due to the faulty steering on these vehicles.