Severe vibration 1800 to 2200 rpm

Who says you have to drive it at 4000rpm

Busta wrote: Just drive it at 4,000rpm like your supposed to. Problem solved!

Don't talk poop your verbal diarrhoea offends my ears. :sick:

steffan wrote:

Busta wrote: Just drive it at 4,000rpm like your supposed to. Problem solved!

Don't talk poop your verbal diarrhoea offends my ears. :sick:

dare i say it +1 lol

They do "All do it Sir" to an extent, but as yours did not vibrate before then something has changed.
Could be the transfer box or gearbox mounts are tighter/ slacker
The engine could be lined up differently
Transfer box could be further forwards/backwards or lined up differently, changing the angle of the rear propshaft
Damper springs in the clutch plate could be different/loose this is the most likely reason I suspect. (What clutch was fitted?)

The differential damper is fitted to the diesel variant, which was never officially sold in this country, so at new Suzuki prices would be around £300 at a guess. You can try wandering round a scrapyard to find something that you can bolt to the holes on the diff nose, but I've no idea which cars fit a suitable one.

Bmw 5 series exhausts have a anti vibrasion on the back box that bolts on

Try taking the prop off the rear stick it in 4wd hi and try it on the front wheels only then if it still does it do the reverse i did the same on mine and found out rear prop knacked ran round for a week with front wheel drive jimny