Reply to "ZF GEAR OIL REVISITED"

bosswrenchMember

Be aware that the ZF uses clutch-plate-type limited-slips on both axles in the differential. Thse are generically known as 'positraction' limited-slip differentials. A characteristic of posi-diffs is jerking going around tight corners under power, especially noticable in the wet. Its caused by a stick-slip reaction to the different axle speeds. The jerking is fixed by using 80W90 'posi-type' rear end lube which is usually the same price as non-posi-lubes. If you need it, it makes driving more pleasant and may lessen wear; if you don't, it does no harm in a ZF.

8/30/0410:54 PM

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