Outer Limits 4x4 Board

351ciofgrunt wrote:You can't get it mod plated in qld

legal limit is 2 inchs

The rebound travel measured between the rubber
rebound stop and the corresponding metal stop
(or the extension of the shock absorber for vehicles
without a rebound stop) may be reduced by no
more than one third.

BadMav wrote:I have spoken directly with the department's modification officer in Brisbane and he basicallly read word for word out of the code of practice but with his spin on it.

The current code of practice states for suspension height increase (or decrease) that the travel in bump or rebound mode may not be decreased by more than a third. This means that when lowering your car, the 'bump' or 'up' travel cannot be decreased by more than a third. Of course that doesn't concern us 4x4 enthusiasts though so here's the impotant bit, the 'rebound' travel is the distance the shock absorber travels down from standard ride height to it's stop. So of course when you lift the vehicle, this distance decreases. The same principal can be used for ifs/irs setups.

The hard part is finding out what this distance is especially when vehicles are old and sagged or previously modified from showroom condition. The guy at DOT couldn't tell me either and said that it's generally accepted that 50mm is the general rule of thumb... but I can't live with that. It's gotta be black or white when it comes to defect notices. Unfortunately I don't know the rebound travel measurement on a standard patrol or maverick as I bought mine already modified, it even passed the roadworthy. The guy who did that didn't know either so he just passed it.

Tyres are another story he (the DOT guy) went on to say that yes, the maxmum increase for tyre size is 15mm taller than the largest size tyre on the vehicles tyre placard, measured at standing height on the car fully loaded. I know I'll never get the 36's approved but there is light at the end of the tunnel. They are looking at relaxing the rule for 4wd's so as to allow a 50mm increase in overall height, (WOW I can run 32's then, awesome).

All the posts about body lifts are correct. Yes you do have to apply in writing with all details of how you are to do it, what material the blocks are made of, bolts, adjustments to steering and or brake lines etc etc.
Then you have to get it inpected. Make sure your car is 110% roadworthy, these guys will find anything to put your car off the road. A mate of mine put his over for the blocks and they picked the flasher was slightly too fast

SCANAS wrote:that rule only applies for vehicles without a separate chassis

BlueScout wrote:I believe that is also referring to the lowering of a car, not lifting. If you are reducing the travel when you are lifting a car, you are doing something wrong.

Red Dog 4x4 wrote:That rule only applies to ifs vehicles were there is a up and down travel bump stops.

stock 4runner wrote:no one does modd plates for suspension lifts as far as i know cause you dont need it plated but im un sure if you are allowed a 4 inch lift

Ferwoaza wrote:I think it's basically because enforcement has turned a blind eye for a long time, unless it looked truely dangerous.

It's rapidly changing now tho, they are starting to crack down big time on anything 4" and 35's or more, quite a few guys in Ipswich area getting defected.