| BUYERS GUIDE
BUS4X4 COASTER 4WD CAMPERVAN
This mine vehicle specialist is also a leader in the recreational market - March 2017
4x4 Motorhomes Australia is part of the Bus 4x4 Group, the Brisbane based secondary manufacturer of 4WD Toyota Coasters and 4WD Toyota Commuters in addition to coach building on Iveco 4WD models.
Bus 4x4 Group also includes I-Bus Australia which builds bus bodies on Isuzu Chassis Trucks. In the last few years, Bus 4x4 Group has diversified from
a 4x4 conversion on mining company transport vehicles to school buses, coaches, tour vehicles, campervans and motorhomes.
The Coaster and Commuter models require converting to 4WD before the campervan body modifications. Bus 4x4 does not build internal fitouts but can recommend quality specialists for internal build.
Bus4x4 has cut its teeth - literally - in the Australian mining environment and we can't think of a tougher place to learn what works and what doesn't. Drivers of mining company equipment aren't exactly noted for their loving care of machinery!
Bus 4 converts new or used Toyota Coaster from two-wheel drive (2WD) to all-wheel drive (AWD), using in-house designed technology with genuine Toyota parts.
The 4x4 conversion work is currently done in Brisbane, but there are a number of approved service centres in other parts of Australia. The conversions suit both manual and automatic versions of these vehicles.
The transition from a 2WD Coaster to an AWD campervan starts by adding a lift-kit to the front and rear suspension. Next, another Toyota differential is added up front, which gets its drive from an AWD transfer case. With this system there is no need to engage free-wheeling hubs to get off the road.
The standard ventilated disc brakes from the Coaster are changed for an updated type, to accommodate the front drive axles. Calipers and disc pads remain as standard.
A front prop-shaft connects to an AWD, two-speed transfer case that's stirred by an electronic rocker switch.
At the back the drive axle is slung under the leaf-spring pack and with optional super-single tyres the ground clearance is increased to a whopping 230 mm. Also on offer is a High Lift 2WD Coaster that can be converted to a campervan.
When we visited the Bus 4x4 office in Brisbane, we saw a fully built campervan including the interior fitout which had a rear island double bed, large shower-toilet module and galley with cooktop and oven, microwave and house-sized two-door fridge. Both external and internal fit and finish was exemplary and there was ample storage space.
Because this vehicle was still being worked on we didn't get to check it out off road, but a quick spin around some of Brisbane's lesser-quality roads soon showed that ride quality had been transformed from the standard Coaster's rigid reaction to bumps.
The Bus4x4 Coaster didn't feel like it was riding almost a foot higher than the standard machine, because handling was flat and predictable.
Toyota Hiace Commuter
The Hiace system is similar to the Coaster, in that it is also AWD, with independent front suspension.
The Hiace Commuter 4WD conversions are done to the SLWB models and mini-bus models, using a single-speed New Process transfer case and limited slip rear differential with 110mm suspension lift.
Although Bus 4x4 does not build internal fit-outs, it can source them through reputed specialists who use cutting edge materials for innovative design, with ample storage and space.
The most popular fit-outs recommended by Bus 4x4 fall into three types: Core Series, used predominantly for 6-7-metre vehicles and starting at $31,990; Executive Series, starting at $49,990, and the luxurious Premium Series, starting at $64,990. All fit-out prices are approximate and depend on the external contractor and the final layout and options.
All layouts include living, kitchen, shower and bedroom areas with vinyl flooring; cooktop, fridge, water tanks, hot water system, house batteries and an external awning. Slide-outs and extra body modifications can be planned at the campervan body build stage.
Bus 4x4 warrants its 4WD and external motorhome modification for 12 months and the fit-out warranty is dependent on the chosen contractor.
Bus4x4 has for some years imported higher-output Coaster models that Toyota didn't import. The standard issue engine was a Hino four-litre with 110kW, but Bus4x4 supplied engines with up to 135kW. A manual five-speed and a five-speed auto were available.
The transition from a 2WD Coaster to a 4WD Campervan started with removal of the standard front end and its replacement by a purpose-designed live axle with Dana 70 or 80 centre, manual free-wheeling hubs and ventilated disc brakes.
The chassis was modified to accept long-travel coil spring front suspension and a front propshaft connected to a New Process, two-speed transfer case.
At the back the drive axle was slung under the leaf-spring pack, increasing ground clearance by a whopping 250mm. An optional Eaton TrueTrac diff centre could be fitted, with final drive ratios from 4.9:1 to 6.1:1.
Previous HIAce campervans
The Hiace Commuter 4WD conversions were done to the SLWB models and mini-bus models, using a single-speed New Process transfer case and limited slip rear differential with 110mm suspension lift.
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