Wheelbase Engineering Ltd

Leading third axle conversions

Why carry out a leading third axle conversion?

Fitting additional axles only takes place for one reason, to maintain legally compliant axle weights when using a vehicle for its intended purpose.

As with all chassis modifications the main reason why an additional leading axle would be fitted is to cater for a gap in the manufacturer's product range where there is no new standard line built product available to the correct specification or to increase the carrying capacity of an existing vehicle. In both of these cases the degree of difficulty encountered when installing the new axle will be dependent on the base specification of the donor chassis.  Due to the specialist nature of the axle required in this situation it is unlikely it will be manufactured by the chassis supplier.

When fitting a leading axle, due to the proximity of the prop shaft the axle beam used for this type of conversion has a special profile, so as not to interfer with the drive line, plus it will usually be fitted with a restricted lift facility. The common description for this arrangement is a 'mid lift' axle.

The base specification of the donor chassis will dictate the extent of work required which, assuming the original wheelbase does not require modification, this could also involve the fitting of a chassis liner, an independent EBS module or repackaging the ancillary equipment fitted by the chassis manufacturer to provide the working space required to accommodate the axle and its attachments.

The additional axle will be fitted with single wheels and tyres, however the choice of tyre size will ultimately be dependent on the customers operational requirements and the geometry of the finished installation.   




Leading third axle conversions

Mercedes 1823 with mid lift.

Mercedes 1823 with mid lift.Mercedes 1840 low height chassis with mid lift axle.DAF CF chassis mid lift axle down.DAF CF mid lift axle raised.Dennis chassis with mid lift axle.Dennis Elite plated at 23000kg with mid lift axle raised.DAF CF 65.220 long wheelbase mid lift conversionMercedes Atego1624 midlift plated at 22000kg GVW.Mercedes tractpor unit mid lift conversion.Renault Premium long wheelbase mid lift axle conversion.Scania P310 mid lift conversion with drum brake plated at 23000kg.Sharrocks Scania with insulated body and mid lift axle conversion.Scania tractor unit mid lift conversion behind side skirts.Volvo FLE mid lift conversion.Scania wheelbase extension and fourth axle conversion.West Dorset mid lift conversion.West Dorset conpactor mid lift conversion.Mercedes Actro 1844 mid lift tractor unit conversion.Rossetts Commercials midlift plated at 26000kg.DAF LF55 for Dorset CC

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