Derek

Derek, Thank you its nice to hear from a somebody that works at infiniti. I'm replacing the bushings with the AC poly bushings and I'll let you know if that fixes the problems. All the other vehicles I drove had similar play in the links and all had that vibration I'm talking about, so maybe that is the issue. Have you noticed this vibration before on a QX? Thank you again.

Gents, I see there are no replys? Has anybody ever had this problem?? My good friend has one and he just told me he was having the same problem (02 Qx4), then I went down to test drive my buddys 03 Pathfinder and found the same thing!! I shook everything under the truck and nothing felt loose, there was alittle play in the bushings but nothing that would cause this type of vibration? Its only when you start off hard at 3500-4500 rpm you get a shake or vibration in the whole drivetrain? No loose U joints, could it be the transfer case? Anybody with a 01-04 pathfinder please let me know what you think?

Thanks! and yes I have a heavy foot, I think I'm very used to my 155hp 95 pathfinder. Do you think this vibration could come from those bushings being warn? you would think I would feel the rear end move around but I don't? Its a weird issue.

Gents, I am a long time pathfinder fan! I have had 2 1995 SE's with suspension and body lifts and I love them. recently I trading my 95 pathy for a 2003 Qx4. I bought it with higher mileage (80k) but It runs and drives silk. I am very familar with the mechanicals but I am stuck on a vibration issue I can't seem to resolve. At a dead stop, then starting off hard I have a vibration threw what feels like the drivetrain at 3500-4000 RPM (peak torque). It is smooth if I starting off easy, and when I hammer it on the highway. While moving there is no vibration at all, even if I hammer it, ONLY from a stop getting hard on the gas (my normal take off). I had it on the lift and sullivan tire just put 4 new tires on, flushed the tranny with full synthetic, and I changed the rear diff fluid. Its still there. I also checked the U-joints and they are tight as well? I brought it to infiniti and they told me the trailing arm bushings were gone, last night I went under the truck to check and everything seemed very tight on all links? ? Any ideas? There is a little play on the lower control arms, does the truck have to be lifted to check this? I don't see how an 2003 could need bushings already?