difference between LWB and SWB springs

[dwaynes]

have been looking at new springs for the GQ LWB just wondering if the OME SWB springs will suit a LWB or are they different part numbers just curious as i have seen the ironman gear advertised to suit both LWB and SWB.

if they are different part number does anyone have these for the LWB


nearly forgot for a 2" lift

[Bartso]

i didn't think there was any diff they will slide in any one LWB and SWB although if you get a softer spring the LWB might sit a bit lower obviously cause of weight

[dwaynes]

so is there any way to determine if they are soft medium or hard as i have a set of second hand ones that i am tossing up to throw in the current ones are just starting to sag in the rear so if the OME ones are the soft ones there will be no benifit will there

[holeyhardtop]

i gave some to 'screwy' from my lwb and he fitted them to his swb with no probs. as has been said the extra weight may make a difference but i

doubt it will. for the small amount of time it takes to throw the rears in i'd just be fitting them and go from there. to determine the softness/rate of a

spring i'm sure it varies with the wire thickness but am unable to help out with specifics.

[dwaynes]

cool think i will just fit them one night next week and go from there

[DIDZ]

Just took a set of 2" OME off my shorty to make way for 4" king springs - Gave the OME 's to my bro-inlaw for his LWB, Fitted them yesterday no prob's - Although the rear were H'D lwb Springs to compensate weight I had In my SWB.
Cheers Pete

[marin]

so is there any way to determine if they are soft medium or hard as i have a set of second hand ones that i am tossing up to throw in the current ones are just starting to sag in the rear so if the OME ones are the soft ones there will be no benifit will there

more coils = softer
thinner wire = less load carrying (i think)
coils closer together at 1 end than the other = progressive rate spring

my front heavy duty king springs (from memory) are 19mm diametre wire, with 9 turns, if this helps

feel free to tell me i'm wrong about this, but only if you can tell me what is correct!

marin

[Rainbow Warrior]

I have just fitted 3" lift Dobinson SWB coils to my LWB dual cab, because it is much lighter than a normal LWB, and it seems to be lifted fine.

The Dobinsons sit 3 inches taller than factory GQ coils on the floor and are thicker in diameter, but not a thick as LWB coils.

The ride with EFS Hydraulic shocks is great, still soft like the factory shockers with more travel and only $95 each.

[steveothedevo]

more coils = softer
thinner wire = less load carrying (i think)
coils closer together at 1 end than the other = progressive rate spring

my front heavy duty king springs (from memory) are 19mm diametre wire, with 9 turns, if this helps

feel free to tell me i'm wrong about this, but only if you can tell me what is correct!

marin

There are 4 factors that determine the (k) Spring Coefficient of a spring:
- Wire diametre
- Spring Diametre
- Number of coils
- Free Length

k - i dont have my book needed with me (its at work at the mo) but u can calc this with the formula below by adding a certain weight to the spring and measuring how much it compressed. Divide the force (weight x 9.81) by the distance compressed in (mm).... so now U'll get the spring constant...

Hope this helps guys

F=k*x

F= force on spring
k= spring constant
x= Spring Displacement

[dwaynes]

well guys did the spring chang over last night with some interesting results

the new springs were a smaller wire diameter but out of the car had the same amount of coils so i made the assumption when i put them in the car would sit alittle lower I took measurements before and after ride hight once done was 6mm lower but what confused me was that it was a hell of a beter ride with a lot less body roll.


so after all that the SWB springs are causing me no dramas and i am very happy with the end result from hight and performance

Thanks all for the info as well