Noise From New Diff.hi

[sport1111]

Hi everyone,

I took my FG11 F6 ute for service and mentioned a slight noise in the diff when I took off around a corner under light throttle. They decided to replace the diff which I thought was overkill. Problem is the "new" diff was noisier than the one they took out with a "significant" whine under light load which disappeared when I backed off.

Long story short...

Complained to ford dealer, they said the would add an additive to the diff. I wanted to fix the problem not mask it. I rang the diff manufacturer and they were unsure but put me onto a small independent diff repair shop in Dandenong (Diff King). I spoke to them and they went for road test and said it didn't have enough pinion bearing preload. I went back to Ford and they said that they couldn't authorise the preload adjust through Diff King so I would have to go back through Ford warranty and most likely they would change the diff again. I figured the cycle may just repeat and I may end up with another noisy diff. I rand the diff manufacturer and they said just to take it to Diff King and get the preload increased. I did this, it took thirty minutes, took it for a road test and it is the quietest it has ever been - even quieter the the original.

Diff King is not the tidiest workshop I have ever seen but being a qualified mechanic in a past life I knew that he knew his stuff... I'm happy.

[EvilDaifu]

Good to hear

[nicheal]

how much did it the new diff cost?

[sport1111]

Hi nicheal,

The new diff didn't cost me anything as they did it under warranty but I didn't think it really needed replacement - maybe just the LSD additive that Ford use.

Anyway... as I mentioned the new diff was noisier that the one they replaced but all good now after the slight increase in pinion preload performed by "Diff King" in Dandenong.