Diff Locks

Hi can any one help with this one, On a diff lock, does it lock all four wheels to turn together, This is what I have always believed as years ago when I got my Range Rover stuck in a bog I put it in low diff lock and am sure all four wheels span, Older landies do not have a diff lock and there fore only one wheel on each axle spins if it gets stuck, Am I correct?

me thinks it locks yer central diff, so u got equal power to the front diff and back diff, unless ya got seperate difflocks on front and rear diffs

Depends if you've got diff locks on the axle diffs. The series Transfer Box doesnt have a central differencial, so the Four wheel drive control simply locks the Dog Clutch, and therfore sending drive to all the wheels. But normally a Series only drives the rear wheels. This is why its not good to drive a series in Low Range 4x4 without being on mud, as the wheels cannot slip and without a central diff, it causes transmission "wind up" which therfore breaks halfshafts.

Whereas (not sure about the range rover Gbox) the defender has a permenant four wheel drive, with a central diff lock. So when it gets tough, the diff locks give 50/50 drive between both axles, but then each axle has a diff as well (if seperate diff locks arnt fitted) so therfore, the wheels on each axle can still slip.

BIOSBILL said:

Whereas (not sure about the range rover Gbox) the defender has a permenant four wheel drive, with a central diff lock. So when it gets tough, the diff locks give 50/50 drive between both axles, but then each axle has a diff as well (if seperate diff locks arnt fitted) so therfore, the wheels on each axle can still slip.

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The Series Landies are the only ones without permanent 4WD (well the Flatlander sort of has). The central diff lock on Rangie/Disco/Defender/110/90 just makes it behave like a Series in 4WD