judder vibration at 2,000rpm

hi bought a jimny 51 plate 43,000 miles with full Suzuki service history.Had a new clutch fitted 2 weeks ago and since then ive got a vibration/noise inside car around 2,000 rpm plus its got a judder abit like a misfire.My mate is a autotuner and he's hooked it up to fault code reader and no faults.Its had new denso iridium plugs and changed rear gearbox mounting with no joy.When I bought it there was a slight missfire/judder but since new clutch its really bad around 3rd gear and 4th gear 2,000rpm.Next checks are propshafts and engine mounting....anybody got any ideas...oh and also if I am steering in revearse I get a knocking but not if I revearse in straight line....just want to do up and sell.

I can't think how the new clutch fitment would cause it if it's not just clutch judder as you bring the clutch up and it continues as you go along.

It's strange if it wasn't there before.

I'll think on it and see if anything comes to me. I often have ureka moments whilst on the toilet, so you may have a wait if I do!

Kirkynut

the clutch seems nice and smooth since changing but still got this vibration in 4th gear around 2,100rpm, I can only explain it like a missfire but ive had it checked and the engines ok.Its like a propshaft not running true but runs ok around 50mph onwards.I will be removing the small propshaft to check as it would have been removed when clutch was replaced.

Check the gearbox mount, Or rear engine mount as it properly known.

There is always the possibility that the new clutch parts were not correctly balanced.

so today ive removed the propshaft from gearbox to transfer box and when you move the uj's they feel knotchy and not smooth and the propshaft from transfer box to rear axle, movement in the uj and also feels knotchy not smooth.