The noise

[Jarl]

I'll say hi first, I'm new here and on my second 80' series. First and 94 petrol and now my 1990 diesel 4.2 turbo and 530000ks but playing strong still.

I've developed a noise. When travelling at about 50 ks or up a hill I get a significant vibration and deep grumbling drone. As soon as I take my foot of the pedal it's gone. It started as only making the noise when turning left corners and climbing hills but now can even do it on flat straights. Sound concerning? Everything underneath looks ok no obvious major leaks. Any help welcome

 

[LINUS]

My guess in the “guess my vibe lottery” is the RR pinion bearing preload.

With those KM’s covered, that could use checking, but if you haven’t even greased/isolated out the UJ’s of both drivelines & slapped a pump in the shaft splines, start there.

You could get off lucky & it’s just a UJ, never know.

Another possibility is a birfield, esp with the turning.

Dip the knuckle grease, slam new grease in the drivelines, see what happens.

 

[Jarl]

Awesome, heres hoping, I'll start with the grease and get a little more involved hopefully your right. Ive seen a lot about bearingsome being the issue. I'll take the cheap grease route before I start switching stuff oUT aye. Thanks

 

[Jarl]

Quick update so i had all my joints greased new bushes on all links and new rear shocks. Chnaged the oil in the diff and it seems to have fixed most of the problem. Litrally just bought this truck so treating it as a once over service before it gets really used. I still occasionally hear the sound but on the same full lock left turn. Its being lifted 2 inches as we speak could eliminate any tyre rub. So we shall see.

 

[chap79]

I had a noise years ago only on 90 right turns under 15mph. Turned out one of the front wheel bearings was a little dry.

 

[Jarl]

I had a noise years ago only on 90 right turns under 15mph. Turned out one of the front wheel bearings was a little dry.

Funny how everything runs through your head. Initially i was looking at transmission faults and hefty price tags for what could be a dry bearing. In the comming months im changing the full wheels for 33s and new steels will do the wheel bearings then and give tyou all another update