SUSPENSION & AXLE Axle AVM Free Wheeling Hubs DA4541 By shifting the knob from ‘4x2’ to ‘4x4’, the clutch is mobilized, causing the inner and outer drive member to interlock. For regular road use or driving on firm surfaces, activating 4WD is unnecessary, and the hubs should remain in the free state. However, if 4WD becomes necessary or is anticipated, the hubs should be switched to the ‘lock’ position. Installing AVM hubs is straight forward and they come with a heat-treated steel clutch ring that guarantees flawless torque transmission. Made from materials resistant to corrosion, they ensure proper clutch ring positioning, with fully independent engage/disengage springs. AVM free wheeling hubs serve as a robust, reliable, and DA3734 Free Wheeling Hubs superior substitute for the hubs originally installed on your DA4541 NEW Series 1, 2, 2A & 3 10 Spline vehicle. They’re utilized to either connect or disconnect the DA4542 NEW Series 3 24 Spline front drive shaft assembly on part-time 4WD vehicles, but can DA4543 NEW Defender 90, 110 & 130 - 300Tdi onwards also be retrofitted to permanent 4WD models with stationary Discovery 1 - 300Tdi onwards hubs to prevent unnecessary differential spinning and the (Not compatible with alloy wheels that do not fit around the subsequent wear it incurs. They are also a very useful in the drive flange). event that you break a front drive shaft on a Series vehicle. DA4544 NEW90, 110 & 130 - up to and including 200Tdi Simply disengage the front hubs, put your transfer box back in (Not compatible with alloy wheels that do not fit around the the 2WD position and you can then drive home. drive flange). Each front driveshaft’s outermost point has a Free Wheeling Hub Service Kits splined section over which the new hubs inner drive member DA3734 NEW Service kit for DA4541 is fixed. Surrounding this is an outer drive member, which is DA3735 NEW Service kit for DA4542 linked to the wheel, with a clutch functioning as a separator. DA3736 NEW Service kit for DA4544 The clutch engagement is facilitated by slanted grooves cut DA3737 NEW Service kit for DA4543 within the free wheeling hub control knob on the exterior. Photo by Gavan Swift 168