hi guys. i dont know if im on the right thread. i have a problem on my mitsubishi L300 van,diesel engine. i first noticed a vibration on 3rd gear,it doesnt matter if from 4th or 2nd gear, (downshift or upshift) as long as its in 3rd gear,vibration occurs.then after few more kilometers, the vibration can also be felt on 2nd gear. its like running over the warning vibrators on the road(white lines) i can here some squeaking on the rear part. is it not on the differential?