New member Commander issues ***HELP!!!***
Have been reading forums on here for the past few weeks and have gained a wealth of information from you all.
I just purchased an 06 Commander Limited Hemi 4WD with 93k mi and overall its in great shape. Bought the Jeep and did full tuneup. Fresh fluid in oil, trans, TC, both diffs, 16 new plugs, replaced drivers side broken exhaust manifold bolts, new front driveshaft, new drivers CV axle, new sway bar bushings and end links, decarb'd, new brakes (pads and rotors),freshly aligned, and a good clean up. Overall the engine runs spectacularly well and has plenty of life left in it. Trans shifts clean and smooth. Also just had all TSBs performed and 4low still works... lol
So heres where I need help... this thing is maybe 1in higher up front than in the back, and more importantly there is a fairly aggressive vibration only on moderate to heavy acceleration between 40 and 55mph... vibe feel like its coming from center of jeep. Shakes wholejust replaced front drive shaft with new one due to bad u-joints, and the vibration remains...
the jeep has 4 brand new matching wheels and tires installed maybe 5k miles ago, it has a 2in plate lift up front with new shocks, and I assume a 2in leveling kit in back. Has newer shocks on all four corners. My best guess for the vibration is one of 4 things:
1. Bad rear u joint(s) or imbalanced driveshaft. (Would have to replace driveshaft unless its serviceable... still need to check tomorrow)
2. Lift with elevated front end causing TC to change pinion angles in a very wierd way (would need to remove lift to rectify)any thoughts on TC lowering here?
3. Wheel may have thrown a weight? (Dont really suspect this because there is no vibe while cruing or decel at this speed)
4. Possible worn trans mount? (Will be checking tomorrow... engine mounts look great)
Any help with this would be greatly appreciated. Thank you all and look forward to hearing from anyone!