How much longer will my diff last?

CheyneX5 · Postby **CheyneX5** » Sat Sep 15, 2012 12:24 am

Hey Guys,

I started hearing noises from my diff tonight. When i change gears, the is a small metallic clunk that comes from the rear of the car, sometimes its slight, sometimes a little louder. There is also a slight whirring noise. It's hard to make out but it's only there when the car is moving.

I changed the clutch last week and also replaced all the fluids. The diff oil had a slight silvery colour to it and there was a piece of metal the size of a tic tac on the drain plug.

I just need to know if i should stop driving the car or keep driving it till it dies. I don't want to risk needing a tow though...

Postby **NitroDann** » Sat Sep 15, 2012 12:47 am

You are risking a tow.

Dann

zephyrus17 · Postby **zephyrus17** » Sat Sep 15, 2012 1:54 am

Get a RAA Roadside Assist membership just in case.

CheyneX5 · Postby **CheyneX5** » Sat Sep 15, 2012 10:45 am

All bases covered there. I had to drive it to work this morning and it was nowhere near as bad. Almost felt normal.

I'm being very careful with it though and am not rushing gear changes or suddenly applying the throttle.

Mr Morlock · Postby **Mr Morlock** » Sat Sep 15, 2012 11:09 am

it will not fix itself. It needs to be checked repaired or replaced. Who did the clutch- a pro - get them to take a look perhaps.

flycasta · Postby **flycasta** » Sat Sep 15, 2012 7:14 pm

The simplist thing to do would be to jack the car up and do a bolt check, I assume you had to take off the PPF and tailshaft to replace the clutch? It may be a universal joint or just a bolt on the PPF that has not been done up properly or the PPF hasn't bedded properly. Doesn't cost anything to check it all over again.

Maybe check the backlash of the diff by doing a rotation of the tailshaft.

Duane

davekmoore · Postby **davekmoore** » Sun Sep 16, 2012 1:55 am

zephyrus17 wrote:Get a RAA Roadside Assist membership just in case.

Or pray that something doesn't fail where it might be dangerous to you or to others.

93_Clubman · Postby **93_Clubman** » Sun Sep 16, 2012 11:25 am

Cheyne, as Flycasta says worth a quick check of the PPF - Hammer's SP PPF cracked which manifested itself as a intermittent metal ticking noise from the rear end:
search.php?keywords=ppf&terms=all&author=hammer&sc=1&sf=all&sk=t&sd=d&sr=posts&st=0&ch=300&t=0&submit=Search

hks_kansei · Postby **hks_kansei** » Sun Sep 16, 2012 11:37 am

flycasta wrote:The simplist thing to do would be to jack the car up and do a bolt check, I assume you had to take off the PPF and tailshaft to replace the clutch? It may be a universal joint or just a bolt on the PPF that has not been done up properly or the PPF hasn't bedded properly. Doesn't cost anything to check it all over again.

Maybe check the backlash of the diff by doing a rotation of the tailshaft.

Duane

A damn good idea.

When the bolt fell out of my PPF the diff made some horrible clunks and thumps as load was put on and off the diff. If your bolts are loose they might be allowing some movement.

It's free to check anyway.