L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
  
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PCT3 wrote:It’s the rolling circumference on these type of 4x4s that should be the deciding factor, front and rear diffs are simple open diffs but the centre ‘diff’ is no longer a diff it’s a clutch which looks at the different axle speeds.
Prior to changing all 4 tyres (big miss match of manufacture and wear) certain high speed bends could cause the centre diff to start engaging as it saw different axle speeds.
BMW I believe allow 10% differential as the max in tyre wear, as it can damage the Transfer box, Land Rover use the same styner transfer box although LRs have the low ratio added
I believe you will find the way the centre diff lock is configured for cars is somewhat different to SUV's . The latter will allow much more wheel speed differential without locking, as off road performance requires it . Also on a Discovery 12 mm of tread difference is only 3.1% on radius so not really significant in the grand scheme of things
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 1st Dec 2019 10:12 am |
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