Vehicle & Technical > Range Rover

V8 diff lock

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Range Rover Blues:
There is supposedly less backleash becuse the B-W box uses a planetery gearset on the first motion shaft, so in high ratio the box is stalled and power is transmitted direct to the Morse chain and so to the centre diff.  In low ratio the gearset spins around the first motion shaft before transmitting drive to the chain.  They were intended to be quiter and as I say have less backlash to suite our American cousins.

I'm quite happy with the performance but then there are other much more experienced off-roaders in the club.  I suspect it may use slightly more fuel due to the drag and possibly wear tyres a little but as has been said, it's the cost when it busts.

oakeedokee:
I'm fairly new to having a Rangie. Mine has the Viscous coupling, which incidentally is great off road as it's one less thing to worry about, however my question is does it need any servicing? Does the viscous fluid need topping up or changing or anything?

Range Rover Blues:
The viscous unit is sealed for life.  It just needs changing every 2 years (etc etc as per handbook) with Dextron3 or whatever.  Ours has EP80/90 in it for nearly 2 years, plus an additive and it's done it no harm at all.

oakeedokee:
:? sealed for life but needs an oil change every 2 years? Now I'm confused! :?  :D

landyman Ash:
The visocus unit gives you diff lock ONLY when you need it, which is great.

DOwn side is that whens its broken, take you a while to notice and then your stuffed!!!!

I run viscous and love it but its a personal chouice thing

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