Diff screeching??

[Skelbo]

Morning all.

I had another very happy day with the Centro yesterday, but have a quick question. Under hard acceleration I was getting a screech that I would automatically assume to be the diff slipping. However, having taken the gearbox apart and looked at it with fellow Cento drivers, the diff feels ok and pretty tight. I cleaned up small grains of sand that had sneaked in there and in the damp conditions and accelerating gently I was able to finish the day without problems, but the screech is still there if I accelerate harder.

What do you suggest I do or check next?

If a rebuild is in order anyway, what spec of parts do you all recommend?

Cheers, Nick.