Vehicle & Technical > Range Rover

Transfer box question/opinions please?

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Angry Badger:
Thanks for the honest reply, Dan.  I can see what you mean by pushing the car sideways.  I did experience this to some (minor) degree on loose stuff when I only had the locker in the rear.  Fitting the Truetrac at a later date balanced the whole thing out and, if anything, holds it's line much better now than when it was runnng std open diffs.  The occasions when an open diff would be of real use are far ouweighed by the benefits of running the lockers all the time for me and I accept they might not suit everybody.

Having had a better look at my transfer box VC, I can rule that out as a problem since it's not faulty, but would still value opinions on the original question.  Is anybody out there running a similar setup to mine?

Range Rover Blues:
Sometimes it's a hinderance to have both wheels locked together, on slippery stuff they both spin and you loose all control.

ANyway, back to the question, because of the way the Detroit works, the amount of 'wind up' in the viscous coupling will become greater, effectively the detroit is llike a pair of freewheel hubs so on a corner only the inner wheel is driving, the outer is free wheeling so the difference between front and rear axle speeds will be greater than normal.

The visocus coupling is a bunch of plates with grooves and stuff in them, half connected to each end alternatley 9like bvattery plates) and separated by a thermo-viscous fluid.  As you stir the fluid it gets hot very quickly and thickens up, sticking to the plates and grovves therein, so it's a reactive LSD.  If you ever driven a proper LSD you'll know how much better a viscouos coupling is, see comment above Re detroit lockers.

Incidentally, Seirra XR4x4 had them in the middle and rear, then again Schuler were fitting them in the 70s.

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