Launch Vibration when pulling/Turning

[roperteacher]

Just wanted to run something by you folks. My 600HO has just started to have a vibration when pulling my gooseneck on tight corners on a slight incline. As soon as it lines out, it's fine, and if it is on Level ground seems to be fine. It will do it occasionally w/o the trailer, but pretty rare. Normally I would not be concerned, but it did not do this the first 10,000 miles, same locations/conditions, etcAM going to have the dealer take a look at the U-joints when it gets serviced next. Anything else I should have them ck???

I might add that the first time it did it, It felt like my goosenck hitch needed greasing/ball, etc. . but still did it after. It was very sudden when it emerged. One day it didn't, next day it did. Much Ablidged

 

[BrentKaiser]

My old 97 gasser did that from day one. It ended up being the limited slip diff had never had the additive put in. The 04. 5 owners manual sais no lsd additive needed. I would take it back to the dealer and ask to have the rear diff fluid changed and see if that corrects it.

 

[roperteacher]

I had the rear diff fluid changed 3,000 miles ago. Went from MOPAR 75-90 to the AMSOIL 75-90 100% synthetic. The AMSOIL sure quieted down the rear diff,( had a noise between 67-70 MPH, ) but maybe it just doesn't work with this set up???

 

[SRadke]

I had a terrible launch vibration from axle wrap/wrong pinion angle while loaded heavy. Not just while turning though, straight lines too.



-Scott