Join Date: Aug 2008
Location: Central OH/ Kilimanjaro,Tanzania
Few of them have issues with valves but for as many that are out there it's not a real problem.
Many of us have way more miles than you mention and no issues , some even in to the 300-35,000 mile range. Have a buddy with an 03 and 212,000, my 04 has 186,000 uses no oil, runs as smooth today as it did when I bought it new
Regular maintenance and just getting them out and running them is the key to keeping them going.
04 KJ JBA 4 IN COILOVER, 32s 4.10s
03 KJ JBA 2.5 T.C. LIFT, 31s 4.10s