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spring flex
spring flex
I just removed the overload springs on the rear of my zook, before i did this the springs were that hard they didnt go anywhere near the factory bump-stops when flexing upwards. Now that i have removed the O/L springs, the spring pack now goes: ^ as it is not reaching the bump stop. Before i extend the bump stops, i was wondering if anyone knew how much flex the springs should take before breaking?? Thanks..
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
there is no answer because different springs, different loads, different amount of times they have fully flexed etc etc etc. will mean springs will break at different times and for different reasons. having said that you'd be pretty unlucky to break a spring in half due to over flexing on a 2" lift. I have seen them bend, usually from hitting something, but never break
Ransom note = demand + collage
Technically, any time you significantly invert a spring it will shorten its life.
The reason your springs still don't go anywhere near your bumpstops though is because of longer than stock shackles. Also, you'll hit the bumpstops under impact even if you don't when flexed static.
The bigger problem is not really breakage - breakage is more caused by axle wrap, but loosing height.
To keep your springs happy, i'd space the stops down 1/2 the length your shackles are over standard. If it's 2", put 1" on the bumpstops.
there are major stability benefits to be gained by getting the car to sit on the bumpstops when articulated.
Steve.
The reason your springs still don't go anywhere near your bumpstops though is because of longer than stock shackles. Also, you'll hit the bumpstops under impact even if you don't when flexed static.
The bigger problem is not really breakage - breakage is more caused by axle wrap, but loosing height.
To keep your springs happy, i'd space the stops down 1/2 the length your shackles are over standard. If it's 2", put 1" on the bumpstops.
there are major stability benefits to be gained by getting the car to sit on the bumpstops when articulated.
Steve.
[quote="greg"] some say he is a man without happy dreams, or that he sees silver linings on clouds and wonders why they are not platinum... all we know, is he's called the stevie.[/quote]
This is becoming a regular thing but dont tell steve 
I agree you wouldnt believe the stability that is gain by proper bumpstop spacing. 10 years of zuking no 1 told me this and I thought it was all about flex.
But its very reasuring when flexing on side angles and feeling it settle on the bumpstop and you know there wont be any unexpected weight tranfer as the suspension cant move anymore.
Nik
I agree you wouldnt believe the stability that is gain by proper bumpstop spacing. 10 years of zuking no 1 told me this and I thought it was all about flex.
But its very reasuring when flexing on side angles and feeling it settle on the bumpstop and you know there wont be any unexpected weight tranfer as the suspension cant move anymore.
Nik
Never thought of it like that... Thanks heaps everyone!! All i've gotta do now is work out which leafs to remove from the front without things turning to sh*t!! thanks again everyone...
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
Oh right.. good good. I've searched for previous threads on a set-up the same as mine, but couldnt find one. At the moment, (in the front) i have 4 leafs, the 3 top ones are all nearly the same in length, but the very bottom leaf is about 10" shorter than the other 3.. any idea which one to remove?? I wish i could figuire out how to add a picture, so i can show you's all!!!!GRPABT1 wrote:I run 3 in the front an 4 in the back, seems to work well. If I were never carrying a load I'd run 3 in the back too.
F&R ARB air lockers, lux diffs, 4 link coil rear, drop shackles, inboarded ranchos, stage 4 reduction gears, 35" silverstones, 9500 winch, RUF, 1.6 EFI, swimming goggles
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