Coil Conversion Kits

Colorado/DMAX Front 03-12

Stage 1 – $4,400 plus GST ($4,840 inc)

Long travel vehicle specific radius arms, radius arm mounts, panhard mount with brace tube, coil/shock towers, chassis brace plates, primary bump stop towers (inside spring tower) secondary bump stops (underside of chassis) CNC folded gearbox crossmember, Steering dampener mount to chassis, brake line mounts, crush tubes for steering box, all necessary bolts w/nylocs.


Stage 2 - $6,800 plus GST ($7,480 inc)

All of the above plus superior engineering adjustable remote reservoir shock absorbers, heavy duty drag link, panhard, steering dampener, EFS/DOBINSON springs.


Stage 3 - $9,800 plus GST ($10,780 inc)

All of the above plus fresh, fully rebuilt 80 series land cruiser front diff, complete from hub to hub. Manual hubs optional. 


Additional parts/information: ABS adaption kit is $500.


If choosing 10 inch coilovers, add $200 for stage 1 kit only.


Stage 2 or 3 will increase by approx. $2,500. Recommend either FOX, KINGS or RADFLO 10 inch remote reservoir.

Braided brake lines approx. 720mm long. $105 ea. 2 required.

Sway bar mounts are $100.

Installation from Ironhide customs pty ltd is approx. $6,000. 

Engineering for QLD only is approx. $800. (lane change approx. $1000 to $2000)

This kit has been engineered on many vehicles in all states. Always check with your local engineer before undergoing procedure. Usual engineering codes used are LS3, LS4 and LG2. If your vehicle has high lift (above 25mm in tyres and 50mm suspension) You may require high lift codes including a lane change test. LS9 LS10 and LT2. Once your engineer has been contacted, ensure they’re briefed on entire conversion as each state may vary in codes required.


You will also require

  • Landcruiser 80/105 series steering box.
  • Custom drive shaft which is made up of your existing Colorado uni joint at your transfer case, and Landcruiser uni joint at the diff.
  • Landcruiser 80 series factory front sway bar. (if using sway bar)
  • Custom power steering lines. Can be made at any hydraulic hose company. Approx. $150.
  • ABS wiring extended approx. 100mm.
  • Ensure rear diff ratio is 4.1 to match the landcruiser 4.1. Transaxle code is stamped on the VIN plate. GT5 (4.1) is required, some are GT4 (3.7) Either regear to GT5 or install another rear diff from GT5 model.
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If choosing stage 1 kit, you will also need the following –

  • HZJ80 series, adjustable panhard. (superior engineering
  • HZJ80 drag link, adjustable. (superior engineering)
  • EFS coils to suit VDJ79 series 1. Standard coils give approx. 2 inches lift. 30mm lift give approx. 3 inch lift. (if using coil with shock, not coilover)
  • Shock absorbers to suit VDJ79, 3 to 4 inch lift. (GU patrol shocks also work at 4 inch lift) (if using coil with shock, not coilover)
  • VDJ79 series 1 steering dampener with bracket to drag link
  • HZJ80 series, complete front axle, with diff center. 92 – 98 model (all are 4.11 ratio)

Engineering and certification considerations as follows –

  • Turning circle can be completely adjusted and maintained to factory Colorado/Dmax specifications.
  • Factory power steering pump maintains 80 to 125 PSI required for landcruiser 80 series steering box.
  • Factory Colorado/Dmax brake caliper specs. 4 pots @40mm diameter pistons. Rotors are 27mm thick, 286mm diameter.
  • Landcruiser 80 series caliper specs. 4 pots @45mm. With a 0.2 mm rotor deflection you can expect 0.32 ml increased fluid usage per pot equaling 2.56ml across all 8 pots. This amount of fluid is easily attainable in the Colorado/dmax 1’’ diameter brake master cylinder. Rotors are 32mm thick, 311mm diameter.
  • Factory ABS sensors maintained. Tone rings are 38 tooth to match factory count.
  • Front axle load for Colorado/Dmax is 1300kg.  Landcruiser 80 series is above this rating to attain GVM increase of 10 percent when coupled with heavier duty rear suspension.
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