Vibration in nw rear end

[godfather]

We have a 2014 nw which has 110000 on the clock now.we have started to get a bad vibration in the rear of the wagon.we have had a transmission service done but there was noise not that bad of a vibration.we have changed the tailshaft which expensive.all suspension in the car was changed to efs.all bushes done except the diff bushes.when the transmission was serviced they took the support bracket off and held the transmission up on a jack and a piece of wood.is there a way that when they put the transmission back there could of been out of alignment or something.we have also gotten the tyres re balanced and also the wheel alignment done.we are at a loss of what it could be.also when acceleration there is a noise or feels like something might be not right where the transmission is.can you also over fill the transmission as well?


Thank you for any help.
Phil

[old Jack]

Hi Phil,

Does it only occur when the transmission is used in Drive?
At what speed and engine rpm is it most noticable?
What happens when you stop accelerating, cruising and decelerating?
Who did the auto service and what ATF was used?
What are your ride heights, measure from centre of wheel hub to underside of wheel arch, measured in a vertical line?
What material are the bushes that were replaced made from, rubber or urethane?
Is it a harmonics that you can hear or a vibration you can feel?

OJ.

[godfather]

Only when in drive.
Over 75kmh.
The vibration is still there but not as bad.only when accelerating is the feeling underneath.
Penrith atf oil was used.the raeme guys at work did the service.
2 inch efs lift was used.
Urethane bushes and genuine Mitsubishi rubber as well.
Definitely a vibration as it makes the exterior mirrors vibrate as well.

[old Jack]

Only when in drive.
Over 75kmh.
The vibration is still there but not as bad.only when accelerating is the feeling underneath.
Penrith atf oil was used.the raeme guys at work did the service.
2 inch efs lift was used.
Urethane bushes and genuine Mitsubishi rubber as well.
Definitely a vibration as it makes the exterior mirrors vibrate as well.

Is vibration still there at 90kph, 100kph and 110kph?
What happens if you shift into 4th manual mode?
Do you know what your pre lift and post lift ride heights are?
Did the problem only happen after the suspension lift?

OJ.

[godfather]

The vibration gets worse as the speed increases.
Shifting into 4th no change still vibrates.Will measure heights tomorrow.
No problem was there before lift.we had ironman 2 inch lift.did not like it so changed out to efs.efs is a harder ride which I like compared to the rubbish ironman suspension.


Thank you again for the quick reply.

[old Jack]

So vibration only occurred after the Ironman lift and continued with the EFS lift?
No vibration prior to either lift?
How many kms on vehicle befor any suspension lift was done?

OJ.

[Ian H]

It might be the issue but I blew my EFS shockers in 18 months after a trip to Dirk Hartog Island which is quite corrugated but we only did about 120 Kim's over there. They made a horrible knocking noise after that trip so I changed over to Koni.

[drgtr]

https://www2.pajeroclub.com.au/forum/showthread.php?t=36280