Problems with Front Diff ARB Air Locker

[glc-brisbane Lurker Find all posts View Profile Close glc-brisbane]

Hi Team
I have an 08 D4D Prado fitted with Front & Rear Diff Lockers from ARB. On the weekend the seal inside the front diff housing that allows the air to pressurise and hence engage the lockers failed resulting in having an open front diff. This is the second time it has failed in 5 months. Has anyone else experienced or heard of this failure in Prados. ARB have admitted that they had a similar problem in Nissan Patrols for a while but they are telling me I have the only Prado with this problem. Whilst ARB have said they will fix the fault again I have lost confidence in the longevity of the seal.
I would appreciate any feedback.
GLC-Brisbane

[MickL Addicted PP Member Find all posts View Profile Close MickL]

Re: Problems with Front Diff ARB Air Locker

ARB have admitted that they had a similar problem in Nissan Patrols for a while but they are telling me I have the only Prado with this problem.

ARB are telling you a bit of BS.... seal failures are reasonably common on ARB lockers and are the single most common fault. It happens no matter what make of vehicle the locker is fitted in to.

Seal failures come down to two things...poor installation practices (seal damaged on installation) and not cycling the diff lock on a regular basis (You need to engage/disengage the unit once a month or so if not giving it a regular work out)

Mick