JMACX Toyota 6x6

Overview

JMACX builds various modifications for the Toyota Land Cruiser, including a 6x6 conversion kit for the Toyota Land Cruiser 70 series and 200 series. This kit replaces the rear frame section and includes uprated axle housings and a coil conversion kit.

Table of contents

JMACX

JMACX offers various modifications for the Toyota 70 series vehicles. These modifications include:

JMAX Land Cruiser 6x6

6x6 conversion kit

JMAX 6x6 conversion kit

This conversion kit can is only available for approved workshops. A converted vehicle has to be approved (certified) to be road-legal, due to the chassis modifications during the conversion.

Frame

Unlike the coil conversion kit for the 4x4 version, the 6x6 conversion is not a bolt on kit. It replaces the rear section of the frame, using a new frame which has straight rails (unlike the original one). During the conversion, the original frame is cut on top of the rear axle. The replacement frame is welded in place.

The rear cross member has a mounting plate for a winch.

Axles

The rear axle housings are the heavy-duty units build by JMACX, with track correction (for the 70 series) and chrome molly axle splines. The factory brakes, rear diff and locker do fit in these axles. The axle load rating is 3000 kg, which is 700 kg more than the stock 70 series rear axle.

The JMACX supplies its axles with diff locks included.

6x6 drive

A pass-through in the second axle drives the third axle. This setup connects the second and third axle via a centrifugal clutch, which locks when the second axle loses traction. The second axle does have a Ford 9-inch differential. The third axle does have a stock Toyota unit.

The stock transfer case drives the front axle and the second axle.

Suspension

JMAX 6x6 suspension

JMACX did base the 6x6 conversion on their coil spring conversion kit for the Land Cruiser 70 series, which was designed to be compatible with the rear suspension from the Toyota Land Cruiser 80 series. Almost all (aftermarket) springs and shock absorbers for the Land Cruiser 80 do fit in this setup. Including the ones from lift kits.

A suspension lift of up to 4 inches is possible. In which case you can use 35-inch tires.

A GVM of 6300 kg is possible with this conversion kit. It depends on the load caring capacity of the rear springs.

Other modifications

JMACX recommends upgrading the next components during a 6x6 conversion:

Extra fuel consumption

Test by JMACX did show the 6x6 conversion will increase the fuel consumption by 1 l/100 km.

Specifications

Land Cruiser 79

Land Cruiser 200 series

JMACX Land Cruiser 6x6
Picture credits: JMACX Off Road Solutions

JMACX Land Cruiser 6x6 Picture credits: JMACX Off Road Solutions JMACX Land Cruiser 6x6 Picture credits: JMACX Off Road Solutions JMACX rear frame section 6x6
Picture credits: JMACX Off Road Solutions
JMACX 6x6 conversion kit
Picture credits: Australian Expedition Vehicles JMACX 6x6 suspension
Picture credits: Australian Expedition Vehicles JMACX 6x6 suspension
Picture credits: JMACX Off Road Solutions

JMACX Land Cruiser 6x6 Picture credits: JMACX Off Road Solutions JMACX Land Cruiser 6x6 Picture credits: JMACX Off Road Solutions JMACX Land Cruiser 6x6 Land Cruiser 6x6 conversion by Boss Aluminium Pty. Ltd. (Picture credits: JMACX Off Road Solutions) JMACX Land Cruiser 200 series 6x6 Land Cruiser 200 series 6x6 conversion (Picture credits: JMACX Off Road Solutions) JMACX Land Cruiser 200 series 6x6 Land Cruiser 200 series 6x6 conversion (Picture credits: Australian Expedition Vehicles)