Update.

Propshaft taken off. Problem with the vibration still occurs.

However not quite as bad if any difference.

I believe that's down to no propshaft for the vibration to travel down.

One possible solution would be a problem with the reconditioned driveshaft.

When all 4 wheels were jacked up of the floor, and drove 20 mph so to replicate the issue of the vibration it showed the front off side wheel turning in a oval rotation. With the half shaft bearing replaced, this is my next move. Anyone with any other suggestions are welcome.

Sadly it's not that simple. I have swapped the wheels around from the rear to the front to see if the problem stops, and the wheel still spins oval at 20 - 30 mph. So there's nothing wrong with the wheels and tyres. Or should I say the wheel osolates in a oval rotation at 20 - 30 mph

My next move would be to either remove the reconditioned driveshaft and get it checked out for any issues or change the shock absorber if it's tyre hopping.

It's really starting to get my goat.

Thanks for the prompt reply.

I have checked the hub flange for play and spun it, with no indication of it being worn. Quite smooth in rotation. No movement from top to bottom with the wheel on.

On reflection to your diagnosis, when I had all 4 wheels off the ground and drove the wheels to the vibrating speed 15-30 mph, the wheel was osolating in an oval revolution, I also noticed that the inner driveshaft was also spinning ovally. Which made me think that the shaft maybe in question. ( Which made me also believe the half shaft bearing may have been at fault ) But having changed that bearing with no change to the problem. I presume, if there is minimal wear in the bearing, it will be more evident in the other end of the driveshaft nearest the intermediate shaft (half shaft) and the wheel. It would be a cheap fix at £50 compared with changing a shock absorber and spring.

Thank you for your advice. As soon as the bearing is changed, I'll post an update.

Thanks again

Half shaft splines very rarely wear like that, at least I`ve never seen it,I have on gearbox primary shaft where clutch is released quickly causing a sheer force on the splines but that was years ago.

I suspect its more likely the bearing that holds the inner cvj and outer and as the outer cvj is mounted through the wheel bearing its more than likely the cause

If it is the splines I will be surprised

For some reason you seem very sure its the shaft,usually the only problems you get with shafts is being bent or going out of balance.apart from shearing that is..

the parts I would go for is the bearings that hold it in place, because if they are slightly worn they will throw the shaft out of balance ie wheel bearing or diff bearing that holds the cvj in place, cvj on video had sideways play on it but not certain of Honda limits on that

A small amount of play is acceptable but too much throws the driveshaft out of balance,shafts are usually balanced before you buy them,so unless its been bent or damaged there is no reason to suspect it being out of balance

spline problems ie damage, wear, cause restriction of free movement in/out of the cvj which is needed during driving as the hub moves up/down on road surface