How easy is fitting a quaife LSD in a 7" sierra diff.
Discussion
Assume you mean Quaife torque biasing diff rather than LSD. If so, I understand this is just a bolt in job, even if it's a bit of a sod.
If you mean a proper LSD, I know the ZF unit requires machining of the diff housing. Not sure about lesser LSDs like Suretrac, TransX, etc. but I'd assume they also need a bit more space like the ZF.
If you mean a proper LSD, I know the ZF unit requires machining of the diff housing. Not sure about lesser LSDs like Suretrac, TransX, etc. but I'd assume they also need a bit more space like the ZF.
adamh said:
Assume you mean Quaife torque biasing diff rather than LSD. If so, I understand this is just a bolt in job, even if it's a bit of a sod.
If you mean a proper LSD, I know the ZF unit requires machining of the diff housing. Not sure about lesser LSDs like Suretrac, TransX, etc. but I'd assume they also need a bit more space like the ZF.
So as I understand it the Quaife is not a LSD then.. So whats th deal with Suretrack or TransX, are they an good? I hear ZF have stopped making the LSD for the 7" sierra now but can I get one anywhere?If you mean a proper LSD, I know the ZF unit requires machining of the diff housing. Not sure about lesser LSDs like Suretrac, TransX, etc. but I'd assume they also need a bit more space like the ZF.
Jason
carefull: As I understand it, and based on a conversation I had with 'Mr Diff', the ZF is regarded as being superior because it gives a smoother locking action that the other LSDs commonly used in Caterhams.
This is because the ZF has steel/something other than steel clutch plates(?) rather than steel/steel. Apparently, steel does not grip smoothly against steel, why, I do not know.
Maybe good oils or certain additives can lessen the snatchiness of steel/steel LSDs, but I'd still rather have a ZF.
You're correct that ZF diffs are indeed hard to find and not (currently) available as new. They do come up used fairly regularly though. Expect to pay £500 to £650 for a complete, honest, but used ZF equipped diff.
This is because the ZF has steel/something other than steel clutch plates(?) rather than steel/steel. Apparently, steel does not grip smoothly against steel, why, I do not know.
Maybe good oils or certain additives can lessen the snatchiness of steel/steel LSDs, but I'd still rather have a ZF.
You're correct that ZF diffs are indeed hard to find and not (currently) available as new. They do come up used fairly regularly though. Expect to pay £500 to £650 for a complete, honest, but used ZF equipped diff.
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