Thread: LRA 4" Lift

I think they need to check their rulers or tape measures. As far as I'm aware, 4" is 100 mm yet their description of their 4" lift kit is that it will drop the suspension by 50 mm. Which is 2".

Maybe I'm just reading it wrong.....

from my understanding of reading it it appears they are only putting 2' raised coils in and then raising the shock mounts the other 2" and using a coil spacers. which i see as a bit stupid really when you can just buy 4" coils and shocks n then all you need to mod is the brake lines, crossmember n watts linkage. and they didnt mention doing anything to replace the rear rotoflex coupling with a proper uni to uni shaft. personally i think youd be better off doing the hole lift in the suspension which is what im about to do....

just my thoughts

It confused me
That's why i asked.

Doesn't sound like 4" to me.

The only thing that is interesting in that pack will be the castor correction assuming its not just using castor bushes.... which I think it may be.

I'm not sure why you would design it with spring spacers rather than 4" springs.

every time that i have spoken to them i get the feeling that they are

The way it was explained to me is:
1. that legally 50mm is the maximum allowable suspension lift.
2. vehicles with SRS airbags are not legally allowed to be body lifted.
3. by lowering the suspension mount points you are not then suspension lifting the vehicle.
4. by lowering the suspension mounts & fitting a 50mm suspension lift you will achieve a theoretical legal 100mm lift.
5. reading LRA's website on this topic indicates they have engineered this product & have either received or about to receive engineers approval.
6. this should then mean that if you are questioned by say your insurance or the RTA you have a legal engineer approved modification.

I would also guess that by keeping the springs slightly shorter you should eliminate some of the bad aspects of long springs when traveling on road ie dive under brake load & roll when cornering - however this is just my theory.

Also lowering the suspension mounts is the opposite to lowering the vehicle.

I have found that LRA have always tried to modify a vehicle legally whilst still trying to improve the performance of the vehicle.

These are some of the people we should put on the web site as being a positive experience.

Hope this helps.

Regards

Chuck

Just clarify, the suspension mounting points are not changed. They are in the same location as standard so I'm not sure how they make this claim.

The springs are spaced down by 2" with spacers. The shocks are longer also, which is what is effectively doing the job of the 2" body lift.

As the effective spring free length with the spacers is longer than standard, longer shocks are needed anyway which necessitates the longer bumpstops to suit without raising the upper mounts or lowering the lower mounts.

It reads to me to be a fairly standard 4" lift, except it uses 2" lift springs + 2" spacers as opposed to 4" lift springs.

The other interesting thing is that I thought most RTA bodies say that max lift is 1/3 metal/metal travel which is 70mm on a D2 and then use this from the upper tolerance of the factory suspension specs (most are delivered at or near the lowest) and then all of a sudden you have a 4" suspension lift which is legal anyway.

Originally Posted by Slunnie

Just clarify, the suspension mounting points are not changed. They are in the same location as standard so I'm not sure how they make this claim.

The springs are spaced down by 2" with spacers. The shocks are longer also, which is what is effectively doing the job of the 2" body lift.

As the effective spring free length with the spacers is longer than standard, longer shocks are needed anyway which necessitates the longer bumpstops to suit without raising the upper mounts or lowering the lower mounts.

It reads to me to be a fairly standard 4" lift, except it uses 2" lift springs + 2" spacers as opposed to 4" lift springs.

The other interesting thing is that I thought most RTA bodies say that max lift is 1/3 metal/metal travel which is 70mm on a D2 and then use this from the upper tolerance of the factory suspension specs (most are delivered at or near the lowest) and then all of a sudden you have a 4" suspension lift which is legal anyway.

All very relevant when you read the article in current 4WD Action about modifying our trucks and the code of practice proposals.