Thread: Continuos whine. (Not me, the truck.) Lol!

Have a feel of your wheels, my front left wheel bearing died a horrible death (ok, maybe it didn't and I picked it up in due course), but I noticed the steering got a little wobble about it, got a bit worse over a few months, then I decided to check. Low and behold it was buggered. In order to change wheel bearings in a P38 you need a 20t press and loads of enthusiasm!

Otherwise just order a new hub assembly from the UK like I did and robert's your dads brother.

Originally Posted by SteveFarmer

HI Matt

Thanks for the heads up, I checked on the GL-5 and there is definitely no brass in a P38 diff, so all good there.

Regards
Steve

Unless you have a locker... Brass fittings on mine! Buyer beware!

Here is a web page i found on P38 Lubricants, pretty helpful

http://www.dingocroft.co.uk/acatalog/Rec_lubes_RR2.htm

Steve

Originally Posted by Keithy P38

Have a feel of your wheels, my front left wheel bearing died a horrible death (ok, maybe it didn't and I picked it up in due course), but I noticed the steering got a little wobble about it, got a bit worse over a few months, then I decided to check. Low and behold it was buggered. In order to change wheel bearings in a P38 you need a 20t press and loads of enthusiasm!

Otherwise just order a new hub assembly from the UK like I did and robert's your dads brother.

Cheers Keithy, will have a check

Put some Castrol EPX 80W90 in the diffs and it muffled the whine nicely. It is GL-5 and is listed as an alternative for Tex 75W90R. Initially I added Nulon teflon to what looked like pretty clean oil. It took the edge off the noise but not that greatly. When I dropped it out it was quite thin and milky. Wont be doing that again. I can now hear the motor and tyres. Sweet. Went for Dex III for T/C and it took some slack out of that. Now that the diff has stopped complaining I can hear it wasnt the T/C. Winning. Now to find out why Madje (Her Majesty) has developed a thirst for oil. I found a tribe of oil loving midgets showering under her the other day. I suspect the stopleak the car dealer put in her has finally run its course. Ha ha. Love this truck.

Cheers.

I used the Penrite 75w90 semi syn and my diff is still pretty noisy, least i think it is my diff.

When we changed the oil, there were a few shards of metal attached to the magnetic sump plug, so something is wearing there

Might be worth me trying some of that slightly heavier Castrol Oil

Regards
Steve

Hi Steve
The more I drive it the quieter it gets. Sorry to hear about the bits in your diff. I had a few tiny flecks of what looked like gold dust, probably enough from both diffs to coat the top of one finger tip if you spread them out. I'll let you know how this oil goes long term. Hopefully I'm on to something and the previous oil was too thin to start with.

Cheers.

Hi

Thanks

My mate who worked as a mechanic for many years said, "that's not to bad, I have seen bits of chewed up bearings in there!"

Still more than you could coat your fingertip with, and the front diff was 100% clean.

When i eventually replace the rear diff, might be a good time to fit an Ashcroft LSD

Regards
Steve