I have a vibration caused by the front driveshaft, it is not spinning smoothly,

All the spicer joints are rotating and moving freely. The joints seem to be in good order, like not sloppy. If the gearbox mounts were broken would this cause the driveshaft to be out of line and thus make the front driveshaft off centre? I will check the U joints are aligned, thanks. Although the vibration is the same now as before I put in the new centre bearing..

Front shaft shouldn't be turning while in 2wd...so if its vibrating then ... its most likely still in rear shaft//joints... I'd recheck for a locked or rough u-joint... However if mounts are broken that certainly can cause vibrations!

Hi, I found the front UJ was seized and the rear wasn't much better. I will replace today and see how it goes... thanks for your help, I owe you a beer... message me if you are ever in Auckland New Zealand.

Well I'll sure take you up on the beer next time I get to Auckland New Zealand! .. Glade you found the problem..

Hi, I replaced the UJ's and the problem is resolved, thanks for all your help. Just a small tip for anyone... mark the diff joint and centre bearing joint with a chisel so that when you put the shaft back together they are aligned, this is because the shaft is weighted and needs to go back in the original bolt up position. I put UJ's in with grease nipples, the previous UJ's didn't have this. It all looks nice painted. By the way... my Ute is a hydraulic tipper, makes maintenance easy.