Nope vibration still there, need advice on tfr box front output flange.

Well after buying a double cardan prop to get rid of this bloody vibration it seems the prop isn't the issue. Drove it with the new £440 prop fitted and the vibration is still there exactly the same.

So I had another play and it seems there is a load of play in the new output flange I had fitted with the gearbox. The shaft from the transfer box itself is solid no discernable movement, fit the output flange and I can actually wobble the prop!

So I'm not gonna change the bearing yet as there's no play in the bearing, but I am gonna buy a new output flange tomorrow and prey to god this cures it! If not I'm flummoxed as everything else seems ok!

One thing I did find however is the shim between the flange and bearing was damaged and worn.

How important is this shim? Because it's knackered do I now need to remove the bearing anyway and fit a new one? I'm wondering if this is part of the cause as it looks like it's been damaged in the past (pic below - I assume this was the spacer?!?)

which flange t/box output ? as there shouldnt be any shim ,and some movement is expected as output shaft is supported by a ball bearing and diff sun gear,though how much is questionable

Front one for front prop on an LT230 tfr box.

There is no play in the shaft itself if I try and move it but a lot of play in the splines between the flange and shaft.

That shim I pictured was between the bearing and output flange looking chewed up like that, I don't know if it's a part of the old output flange maybe?

shims shouldnt be there ,and worn splines is unusual but shaft can be replaced easily

This is the new flange that was fitted a little while ago, still with loads of play in the splines, there was also bits of metal coming off the flange and I can feel a lip on the end of the splines.

Thinking about it I think the vibration started when this flange was fitted, but it's hard to be 100% sure as I'd only had it 3 wks then!

Could it just be a simple case of a faulty/cheap nasty part?

easily could be ,though very unusual up to now ,flanges have been such a non problem part you wouldnt think of it

Where would I get a new output shaft if it's the splines that are worn on it?

id have a good one as would most with a surplus t/box,if anything wears in general its diff lock dog teeth

Would they cause a vibration under load at 40mph to 60Mph?

Really pulling my hair out with this now, spent a fortune chasing it and I just can't cure it!

One thing that did happen remembering back is I took it back with this vibration and they swapped the new prop I supplied for the old one.

The vibration disappeared then for a few days then came back?!? And I've had it ever since.

Then last week I was checking around and found the UJ on the prop was worn so put the new one back on and the vibrations worse now. The double cardan prop has improved it slightly but not much!

removing front prop as you did and it going,puts it at the front end ,but without trying it myself its hard to say exactly though a poor flange could cause it as could poor output bearing but so could poor tracking etc

I think I'll get a new decent quality flange then take it from there. It's been leaking a fair bit from that flange (and getting worse) even though a new seal was fitted as well.

If that doesn't cure it I will need a professional to look at it I think as I'm just wasting good money after bad now. It's a shame you aren't closer

harry2012 said:

I think I'll get a new decent quality flange then take it from there. It's been leaking a fair bit from that flange (and getting worse) even though a new seal was fitted as well.

If that doesn't cure it I will need a professional to look at it I think as I'm just wasting good money after bad now. It's a shame you aren't closer

Click to expand...

thee might be a clue in the leaking after re-sealing,and the fact it started after new prop .and unfortunately you cant rule out poor new parts

Whereabouts are you Harry2012? Put your location in UserCP .. might get further offers of help.

harry2012 said:

Click to expand...

One for JM but could that 'shim' actually be an output bearing shield which has popped out?

Well today I bought a new front output shaft, flange, bearing, and seal.

Fitted it all pretty easy job (except getting the stupid circlip out, stupid cheap circlip pliers!) and the vibration is GONE

I tried the new flange on the old output shaft before fitting and it was still loose on the shaft and I could see on close inspection the splines were a bit worn. Also the bearing itself was notchy so needed doing anyway.

A pic of the old bits


A close up of the splines, they do look a bit worn.


So glad I've finally found the issue! It's been expensive trying to fix this!

Harry I've been getting awful vibration/shuddering from the front end at 55mph onwards and comes and goes but gets worse with road speed. Are these symptoms similar to yours? Doc Evil suggested front output bearing but I've no play in the flange that I can tell

I was getting an oscillating type vibration, at 40-60mph, kinda like driving over rumble strips, but only whilst under load, coasting/dip the clutch, nothing

Mine is different even if I lift off pedal, brake, steer or dip clutch it's still there. Wondering if it is bearing or shaft as I've tried everything else so far

This is what I've been gettin http://www.landyzone.co.uk/lz/showthread.php?t=251696