Quaife diff

[mfp4073]

Has anybody used a quaife diff in their Monaro? if so how does it perform, do they require any additives in the oil, and do they clunk or have any slack when fitted?

John

[stevieturbo]

Torsen diffs do not make any noise, nor do they require any special fluids etc.

For road use they work great for a lot of reasons.

For hard track use, tight and twisties....as I've mentioned before, all Torsens will allow one wheel to spin if it gets light enough, as a Torsen requires load against both tyres in order to transfer drive to the one with the most grip. But if it gets lost altogether it will behave like an open diff.

For most people not an issue at all though.

But a lot of the Yank design diffs are also Torsens...and probably a lot cheaper than a Quaife ? Perhaps Wavetrac being the exception of being more expensive or similar ?

[mfp4073]

stevieturbo said:

Torsen diffs do not make any noise, nor do they require any special fluids etc.

For road use they work great for a lot of reasons.

For hard track use, tight and twisties....as I've mentioned before, all Torsens will allow one wheel to spin if it gets light enough, as a Torsen requires load against both tyres in order to transfer drive to the one with the most grip. But if it gets lost altogether it will behave like an open diff.

For most people not an issue at all though.

But a lot of the Yank design diffs are also Torsens...and probably a lot cheaper than a Quaife ? Perhaps Wavetrac being the exception of being more expensive or similar ?

.

Thanks for that. Next year I'm thinking about replacing my trutrack with either a quaif, or a Wavetrac.
I haven't a clue which is the better option for road use, I just want something that doesn't have a heavy clunk, and sound like the diff is going to come off every time you change gear.

Edited by mfp4073 on Tuesday 5th September 09:10

[mfp4073]

stevieturbo said:

Torsen diffs do not make any noise, nor do they require any special fluids etc.

For road use they work great for a lot of reasons.

For hard track use, tight and twisties....as I've mentioned before, all Torsens will allow one wheel to spin if it gets light enough, as a Torsen requires load against both tyres in order to transfer drive to the one with the most grip. But if it gets lost altogether it will behave like an open diff.

For most people not an issue at all though.

But a lot of the Yank design diffs are also Torsens...and probably a lot cheaper than a Quaife ? Perhaps Wavetrac being the exception of being more expensive or similar ?

.

Thanks for that. Next year I'm thinking about replacing my trutrack with either a quaif, or a Wavetrac.
I haven't a clue which is the better option for road use, I just want something that doesn't have a heavy clunk, and sound like the diff is going to come off every time you change gear.

Edited by mfp4073 on Tuesday 5th September 10:30

[mfp4073]

stevieturbo said:

Torsen diffs do not make any noise, nor do they require any special fluids etc.

For road use they work great for a lot of reasons.

For hard track use, tight and twisties....as I've mentioned before, all Torsens will allow one wheel to spin if it gets light enough, as a Torsen requires load against both tyres in order to transfer drive to the one with the most grip. But if it gets lost altogether it will behave like an open diff.

For most people not an issue at all though.

But a lot of the Yank design diffs are also Torsens...and probably a lot cheaper than a Quaife ? Perhaps Wavetrac being the exception of being more expensive or similar ?

.

Thanks for that. Next year I'm thinking about replacing my trutrack with either a quaif, or a quaife. I haven't a clue which is the better option for road use, I just want something that doesn't clunk and judder every time you change gear.

[ARAF]

Not sure if it is still the same, but Quaiffe used to wait until they had half a dozen orders before manufacturing a batch. If that is still the way they work, you could be waiting for a while. Check with them now, to see if they have one on the shelf, or what their lead time is for manufacture.

[mfp4073]

ARAF said:

Not sure if it is still the same, but Quaiffe used to wait until they had half a dozen orders before manufacturing a batch. If that is still the way they work, you could be waiting for a while. Check with them now, to see if they have one on the shelf, or what their lead time is for manufacture.

Quaife have a few diffs in stock as the moment. Sadly finances dictate I will have wait until next year.......typical!

[stevieturbo]

Is the TruTrac not a Torsen anyway ?

if so, cant really see any benefit with a Quaife unless yours has broken and needs replaced ?

[mfp4073]

stevieturbo said:

Is the TruTrac not a Torsen anyway ?

if so, cant really see any benefit with a Quaife unless yours has broken and needs replaced ?

Yes I know what you mean, it's just that I'm sick to death of the god awful clunking and banging from the massive amount of slack I have coming from the diff.
I just hope the 3,90 gears have not been damaged in anyway, and whatever I replace the truetrac with, is a lot quieter?

[Mud_]

Does my trutrac not clunk, have I learnt to drive around it, or am I desensitised?

[stevieturbo]

mfp4073 said:

Yes I know what you mean, it's just that I'm sick to death of the god awful clunking and banging from the massive amount of slack I have coming from the diff.
I just hope the 3,90 gears have not been damaged in anyway, and whatever I replace the truetrac with, is a lot quieter?

There are no parts in any Torsen diff that would clunk or make noise. There are just gears inside. So whatever is clunking is not related to the diff itself, unless something is seriously fecked.

https://www.youtube.com/watch?v=JEiSTzK-A2A

https://www.youtube.com/watch?v=lZmsY2YvVsc

[MyM8V8]

stevieturbo said:

mfp4073 said:

Yes I know what you mean, it's just that I'm sick to death of the god awful clunking and banging from the massive amount of slack I have coming from the diff.
I just hope the 3,90 gears have not been damaged in anyway, and whatever I replace the truetrac with, is a lot quieter?

There are no parts in any Torsen diff that would clunk or make noise. There are just gears inside. So whatever is clunking is not related to the diff itself, unless something is seriously fecked.

https://www.youtube.com/watch?v=JEiSTzK-A2A

https://www.youtube.com/watch?v=lZmsY2YvVsc

Clunking could be due to poor backlash setting. I set it to 4 thou on a manual.

Or worn CV joints. I doubt very much you have a problem with the Trutrac.

[mfp4073]

Thanks for the replies guys, there seems to be quite a few things to consider with this issue. I won't know for sure what the problem is until I open up the diff cover. Sadly and very painfully a back and neck injury have put a stop to all car related jobs for a while.
As much as I love my Monaro there are times when I could take a sledge hammer to it....but I guess that really wouldn't end well...

[stevieturbo]

MyM8V8 said:

Clunking could be due to poor backlash setting. I set it to 4 thou on a manual.

Or worn CV joints. I doubt very much you have a problem with the Trutrac.

Exactly...chances of it being the diff unit itself, are almost zero.

I would investigate things outside first.