If the prop centre bearing is original then it will be well sagged and the rubber mount persished. Search on it here - loads of opinions. Certainly got to be a favourite and if its been gone a long time then the actual universal joints on the shaft could also be on the way out too.

I am hoping it is nothing to do with the prop. I do still have alot of wurring noise going on. I guess this is most probably the rear wheel bearings as my Mechanic figured.

These vibrations, do they occur mainly between 30 and 50 mph ? This wurring sounds like mine, defintely metallic, not wheel bearings, I had all my wheels balanced, still the vibration.

I seem to have the same problem but it is really noticeable at about 80mph especially when lifting off the gas. Prop shaft bearings?

I think personaly that it is something like the prop. I just don't want to do the prop then find out it was something else. I guess if it had a new gearbox mount then it might have meant that extra strain was put on the bearing whilst the old mount was making the prop sag?

I have the "typical" Z vibration in the seat at about 30 - 50 mph, especially when cold. I replaced the rear gearbox mount, which did nothing to eliminate the vibrations. I compared the new gearbox mount to the old, and frankly, the old looked as good as the new, no sagging, no deterioration of the rubber. I doubt in your case that its the gearbox mount. Several people on this forum have replaced the gearbox mount and found it did not solve the vibration, which was only cured when the prop shaft centre bearing was replaced. Mine will have to be done soon.

My rtracking is ever so slightly out aswell. Guess this would not help matters. If I get the wheels tracked will I need to have a complete 4 wheel track seeing the Zed steers with all four?

I think Jeff at Zedworld charges about £280......bearing itself costs a bundle, probably £160 just for the bearing. Check his website, http://www.zedworld.co.uk

These vibrations, do they occur mainly between 30 and 50 mph ? This wurring sounds like mine, defintely metallic, not wheel bearings, I had all my wheels balanced, still the vibration.

I have visited my local mechanics and he thinks it might well be a rear wheel bearing as the vibrations don't get any better when the car is put into neutral and no vibratations could be felt when I put my hand on the transmission tunnel.

33010 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Florida based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 33010 is Hispanic. The majority race/ethnicity attending public schools in 33010 is Hispanic. The current unemployment level in 33010 is 3.5%.

There is an easy test for this mate! It sounds like your mechanic is right. If you want to eliminate anything transmission related (i.e. rear mount, propshaft, etc), just put your foot on the clutch! If it's still there, it's nothing to do with the transmission. If you want to eliminate anything from the engine backwards, turn it off! You'll obviously lose power steering, etc, so make sure you're safe and ready to bump start it again.

Cant see a rear wheel bearing causing this - one of mines on its way out, and its a bit noisy - but thats about it. What about rear diff or prop shaft bearing? Although having said that my prop bearing was shagged when I got my car and it didnt make the seats vibrate....

Feeling it through the seat a give away and also a new gearbox mount would make the angle of sag worse on a sagged centre bearing than before the gearbox mount was fitted.

ZIP Code 33010 is located in Hialeah Florida. 33010 is entirely within Dade County. Regionally, 33010 is located in Metro Miami-Fort Lauderdale.

I was also told that I had had a new gearbox mounting bracket. Something else I know can be a cause of vibrations. This surely eliminates a dodgy mounting bracket though?

Feeling it through the seat a give away and also a new gearbox mount would make the angle of sag worse on a sagged centre bearing than before the gearbox mount was fitted.

The mechanic is sure it is a rear wheel bearing. I am not convinced though as I am not sure that this would cause vibrations through my seat? Anyone had vibrations like this from worn wheel bearings?