vibration noise since new rear springs

[saum2]

Ok so the new 0-200kg springs are in but now there's vibration noise while highway running at 60kph, can't hear any noise above that speed. Any ideas? is it driveline issue due to the raised rear end?.....50mm ride high increase.

[Grant L1]

It will be the centre bearing, have a search here as there is lots of info about this problem. I have a spacers on mine to drop the centre bearing down, some have also installed wedges on the leaf springs to alter the angle of the diff flange, others turn the bearing housing upside down and some have modified their tail shafts using double cardan joints.

[saum2]

Ok, Centre bearing issue fixed but I still have a drumming noise at 60Kph. It seems to be transmission as it alters if I used Sport mode and downshift.
it seems to be 5th gear in auto and shudders a bit coming to a stop at traffic lights etc. Any ideas or just go to Ford and try to sort it.

[Grant L1]

Ford dealer maybe able to use update or reload the software and that may fix the problem. I hope it does, so all the best.

[SRD0060]

The harder rear shocks in the rear and depends on the rubbers used you may feel tyre and road vibration. Check your tyre pressures if they have been bumped up?