I had a 1998 Grand Cherokee Laredo 4.0L for 5.5 year / 130K Km. Besides a leaking axle output shaft and an overhead console going funky when the Jeep was parked in the sun, all repaired under warranty, I had not other problems than a squeeling fan belt in wet conditions. Never had an issue with Selec Trac transfer case. Fuel economy was as bad as the V8 except on exclusive Highway driving. But it drives and feels significantly more truckish than the newer GC (1999+). I would avoid the The 1999 GC... 2002-2004 GC have better reliability IMO... and better interior/dash as well.