Vy Shuddering (Handbrake?)

[Brendon123]

I have a VY Clubsport when driving slowly it shudders feels like the handbrake is grabbing off and on, mainly drivers side sometimes passenger the only way to stop it is to drive around a carpark with the handbrake on, yes has been adjusted properly with new disks. Does anybody know what this is
Thanks

[colgf]

I would say your LSD is "chattering" . Its either worn out or try changing the diff oil & add some Penrite LSD additive to it as well.

[Brendon123]

Cool Thanks for that, its nearly due for a service might do that at the same time

[andyman]

castrol saf-xa is a direct fill oil for holden and ford lsd's, you dont add any modifiers to it, as they are allready in it

[colgf]

I wouldnt use Castrol on a Farmyard Gate ,let alone a LSD unit. Penrite Limslip 80-140 is the go!!!! Plus a container of Penrite Limslip additive . They are both Liquid Gold!!!!!!

[andyman]

I wouldnt use Castrol on a Farmyard Gate ,let alone a LSD unit. Penrite Limslip 80-140 is the go!!!! Plus a container of Penrite Limslip additive . They are both Liquid Gold!!!!!!

and then penrite oil is better than castrol why? if it was better why would you need to add the friction modifier,

a name and advertising commercial dosnt mean a product is better

[colgf]

and then penrite oil is better than castrol why? if it was better why would you need to add the friction modifier,

a name and advertising commercial dosnt mean a product is better

The additive is a Penrite recommendation for extreme heavy duty use , racing, & for noisy chattery LSD's. Just ask any reputable Diff repairer (Aussie Diffs at Gold Coast or Northside Gearboxes & Diffs at Brisbane for example) what they use & recommend, besides that ,it's dearer - so it's got to be better!!!!

[andyman]

besides that ,it's dearer - so it's got to be better!!!!

oh man for sure, cant go better by ripping yourself off

[andyman]

The additive is a Penrite recommendation for extreme heavy duty use , racing, & for noisy chattery LSD's. Just ask any reputable Diff repairer (Aussie Diffs at Gold Coast or Northside Gearboxes & Diffs at Brisbane for example) what they use & recommend, besides that ,it's dearer - so it's got to be better!!!!

its not penrite recommended additive, holden reccomend it with there lsd's early on, then castrol released an oil that has the friction modifiers allready forulated in the oil, then for some reason holden recommends that oil for lsd's,


every buisness will recommend the oil brand they stock